Historical Identification: Per Dreyer, NGC 5600 (= GC 3869 = JH 1797 = WH II 177, 1860 RA 14 17 08, NPD 74 43.2) is "pretty bright, pretty small, gradually brighter middle". The position precesses to RA 14 23 49.5, Dec +14 38 33, well within the northern rim of the galaxy listed above, the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 2320 km/sec, NGC 5600 is about 105 to 110 million light years away, in fair agreement with widely varying redshift-independent distance estimates of 125 to 345 million light years. Given that and its apparent size of about 1.4 by 1.25 arcmin, it is about 45 thousand light years across.

Historical Identification: Per Dreyer, NGC 5601 (= GC 5770, Ball using Lord Rosse's Leviathan, 1860 RA 14 17 08, NPD 49 03) is "very faint, between (WH) III 733 and 734", the latter galaxies being NGC 5598 and 5603. The position precesses to RA 14 22 46.3, Dec +40 18 41, about 1.3 arcmin west of the galaxy listed above, but the description is reasonable and its position relative to the nearby galaxies makes the identification certain.
Physical Information: Based on a recessional velocity of 5250 km/sec, NGC 5601 is about 245 million light years away. Given that and its apparent size of about 0.9 by 0.35 arcmin, it is about 65 thousand light years across.

Historical Identification: Per Dreyer, NGC 5602 (= GC 3870 = WH II 694, 1860 RA 14 17 17, NPD 38 49.5) is "pretty faint, pretty small, a little extended, much brighter middle". The position precesses to RA 14 22 15.7, Dec +50 32 10, about 2.1 arcmin north northwest of the galaxy listed above, but the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 2230 km/sec, NGC 5602 is about 100 to 105 million light years away. Given that and its apparent size of about 1.4 by 0.75 arcmin, it is about 40 to 45 thousand light years across.

Historical Identification: Per Dreyer, NGC 5603 (= GC 3871 = JH 1800 = WH II 734, 1860 RA 14 17 24, NPD 48 58.7) is "considerably faint, pretty small, round, gradually brighter middle". The position precesses to RA 14 23 01.9, Dec +40 23 01, less than 0.4 arcmin north northeast of the galaxy listed above, the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 5665 km/sec, NGC 5603 is about 260 to 265 million light years away. Given that and its apparent size of about 1.0 by 1.0 arcmin, it is about 75 to 80 thousand light years across.

Warning About Non-Standard Designations: The use of non-standard designations such as adding a letter to an NGC or IC designation should be discouraged, as that often leads to the same galaxy being given different names, and as a result, data for one galaxy being misattributed to another one. Fortunately that has not happened in this case, but there is still no good reason to call this object NGC 5603B.
Physical Information: Based on a recessional velocity of 5515 km/sec, PGC 51372 is about 255 to 260 million light years away. Given that and its apparent size of about 1.75 by 1.45 arcmin, it is about 130 thousand light years across.

Historical Identification: Per Dreyer, NGC 5604 (= GC 3872 = JH 1799 = WH III 668, 1860 RA 14 17 28, NPD 92 34.2) is "faint, pretty small, round, very gradually brighter starlike middle, mottled but not resolved". The position precesses to RA 14 24 43.7, Dec -03 12 23, on the northeastern rim of the galaxy listed above, the description is a reasonable fit and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 2750 km/sec, NGC 5604 is about 125 to 130 million light years away, in good agreement with redshift-independent distance estimates of 85 to 155 million light years. Given that and its apparent size of about 1.9 by 0.95 arcmin, it is about 70 thousand light years across.

Historical Identification: Per Dreyer, NGC 5605 (= GC 3873 = JH 1798 = JH 3569 = WH III 120, 1860 RA 14 17 32, NPD 102 32.5) is "very faint, pretty large, round, very gradually brighter middle". The position precesses to RA 14 25 07.0, Dec -13 10 40, only about 0.9 arcmin south of the galaxy listed above, the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 3395 km/sec, NGC 5605 is about 155 to 160 million light years away, in reasonable agreement with redshift-independent distance estimates of 170 to 195 million light years. Given that and its apparent size of about 1.5 by 1.3 arcmin, it is about 70 thousand light years across.

Historical Identification: Per Dreyer, NGC 5606 (= GC 3874 = JH 3568, Dunlop 313, 1860 RA 14 17 37, NPD 149 00.0) is a "cluster, small, pretty compressed, stars large and small" (meaning bright and faint). The position precesses to RA 14 27 51.2, Dec -59 38 00, nearly dead center on the cluster listed above, the description fits and there is nothing comparable nearby, so the identification is certain.
Physical Information: NGC 5606 is about 5900 light years away. Given that and its apparent size of about 2.7 by 2.0 arcmin, the cluster is about 4 or 5 light years across. It is thought to be about 12 million years old. (Note: LEDA identifies NGC 5606 as "PGC 3518666", but a search of the database for that designation yields no result. The brightest star in the cluster, HD 126449, has its own designation, PGC 3047192; but a search of the database for that designation also yields no result.)

Historical Identification: Per Dreyer, NGC 5607 (= GC 3875 = WH II 331, 1860 RA 14 17 44, NPD 17 47.5) is "pretty faint, considerably small, irregularly round, brighter middle, extremely mottled but not resolved". The position precesses to RA 14 19 29.1, Dec +71 34 02, about 1.3 arcmin south of the galaxy listed above, but the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 7595 km/sec, a straightforward calculation indicates that NGC 5607 is about 350 to 355 million light years away. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the galaxy was about 340 to 345 million light years away at the time the light by which we see it was emitted, about 345 to 350 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about 1.3 by 1.25 arcmin, the galaxy is about 130 thousand light years across. It is a starburst galaxy, with an exceptionally bright nucleus in comparison to its disc.

Historical Identification: Per Dreyer, NGC 5608 (= GC 3876 = JH 1801 = WH II 673, 1860 RA 14 17 48, NPD 47 35.2) is "faint, pretty large, a little extended, very gradually a little brighter middle". The position precesses to RA 14 23 21.0, Dec +41 46 33.4, well within the eastern outline of the galaxy listed above, the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 665 km/sec, NGC 5608 is about 30 million light years away, in good agreement with redshift-independent distance estimates of 30 to 55 million light years. Given that and its apparent size of about 2.4 by 1.2 arcmin, it is about 20 to 25 thousand light years across.

Historical Identification: Per Dreyer, NGC 5609 (= GC 3881, 3rd Lord Rosse, 1860 RA 14 17 53, NPD 54 31) is "most extremely faint". The position precesses to RA 14 23 47.3, Dec +34 50 47, less than 0.3 arcmin northwest of the galaxy listed above, the description fits and there is nothing else nearby, so the identification is certain.
Discovery Notes: Although Dreyer credits the discovery to William Parsons, 3rd Earl of Rosse, he notes that many of Rosse's nebular discoveries were actually made by one of his assistants, in this case Bindon Stoney.
Physical Information: Based on a recessional velocity of 30155 km/sec, a straightforward calculation indicates that NGC 5609 is about 1405 million light years away. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the galaxy was about 1250 million light years away at the time the light by which we see it was emitted, about 1310 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about 0.35 by 0.25 arcmin, it is about 125 to 130 thousand light years across.

Historical Identification: Per Dreyer, NGC 5610 (= GC 3877 = JH 1802 = WH III 136, 1860 RA 14 18 04, NPD 64 45.6) is "very faint, small, pretty much extended 0°±, 9th magnitude star to east". The position precesses to RA 14 24 24.1, Dec +24 36 14, less than 0.7 arcmin south southeast of the galaxy listed above, the description is a perfect fit and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 5065 km/sec, NGC 5610 is about 235 million light years away, in reasonable agreement with redshift-independent distance estimates of 190 to 225 million light years. Given that and its apparent size of about 1.9 by 0.7 arcmin, it is about 130 thousand light years across.

Historical Identification: Per Dreyer, NGC 5611 (= GC 3878 = JH 1803, 1860 RA 14 18 06, NPD 56 19.0) is "faint, small, round, brighter middle". The position precesses to RA 14 24 05.2, Dec +33 02 49, right on the galaxy listed above, the description is reasonable and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 1970 km/sec, NGC 5611 is about 90 to 95 million light years away, in reasonable agreement with a pair of redshift-independent distance estimates of about 80 to 85 million light years. Given that and its apparent size of about 1.2 by 0.5 arcmin, it is about 30 to 35 thousand light years across.

Historical Identification: Per Dreyer, NGC 5612 (= GC 3879 = JH 3567, 1860 RA 14 18 10, NPD 167 46.0) is "very faint, extended, gradually brighter middle, mottled but not resolved". The position precesses to RA 14 34 08.0, Dec -78 23 36, just off the southeastern rim of the galaxy listed above, the description is a good fit and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 2700 km/sec, NGC 5612 is about 125 million light years away, in reasonable agreement with a single redshift-independent distance estimate of 110 to 115 million light years. Given that and its apparent size of about 1.9 by 0.95 arcmin, it is about 70 thousand light years across.

Historical Identification: Per Dreyer, NGC 5613 (= GC 3882, 3rd Lord Rosse, 1860 RA 14 18 11, NPD 54 28.0) "extremely faint, pretty small, diffuse, 2 arcmin north of h1804", h1804 being NGC 5614. The position precesses to RA 14 24 05.0, Dec +34 53 49, less than 0.4 arcmin northwest of the nucleus of the galaxy listed above and well within its outer ring, the description fits and its position relative to NGC 5614 makes the identification certain.
Discovery Notes: Although Dreyer credits the discovery to William Parsons, 3rd Earl of Rosse, he notes that many of Rosse's nebular discoveries were actually made by one of his assistants, in this case Bindon Stoney.
Physical Information: Based on a recessional velocity of 8495 km/sec, a straightforward calculation indicates that NGC 5613 is about 395 million light years away. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the galaxy was about 380 to 385 million light years away at the time the light by which we see it was emitted, about 385 to 390 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about 1.0 by 0.7 arcmin (counting its faint outer ring), the galaxy is about 110 thousand light years across. Although used by the Arp Atlas as part of an example of galaxies with counter-tails, NGC 5613 has no connection being the other galaxies in the group, being more than twice as far away as its apparent companions.

Historical Identification: Per Dreyer, NGC 5614 (= GC 3880 = JH 1804 = WH II 420, 1860 RA 14 18 12, NPD 54 29.9) is "pretty bright, small, round, suddenly much brighter middle". The position precesses to RA 14 24 06.1, Dec +34 51 55, on the northwestern rim of the galaxy listed above, the description fits and there is nothing comparable nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 3890 km/sec, NGC 5614 is about 180 to 185 million light years away. Given that and its apparent size of about 2.4 by 1.8 arcmin, it is about 125 to 130 thousand light years across. NGC 5614 and its apparent companions are used by the Arp Atlas as an example of a galaxy with a counter-tail, but although NGC 5615 may be related to the formation of the counter-tail, NGC 5613 is over twice as far away as its apparent companions, and therefore has nothing to do with them.

Historical Identification: Per Dreyer, (= GC 3883, 3rd Lord Rosse, 1860 RA 14 18 12, NPD 54 29.5) is "close north of h1804 (perhaps a very faint star)", h1804 being NGC 5614. The position precesses to RA 14 24 06.1, Dec +34 52 19, only 0.4 arcmin north northwest of the galaxy listed above, the description is reasonable and there is nothing else that could fit the described position, so the identification is certain.
Discovery Notes: Although Dreyer credits the discovery to William Parsons, 3rd Earl of Rosse, he notes that many of Rosse's nebular discoveries were actually made by one of his assistants, in this case Bindon Stoney.
Physical Information: Based on a recessional velocity of 3945 km/sec, NGC 5615 is about 180 to 185 million light years away, the same as its larger companion. Given that and its apparent size of about 0.2 by 0.1 arcmin, it is about 10 thousand light years across. NGC 5615 is used by the Arp Atlas as part of an example of a galaxy with a counter-tail (NGC 5614), and their relative position and essentially identical distance suggests that their interaction is probably the cause of that counter-tail.

Historical Identification: Per Dreyer, NGC 5616 (= GC 3884 = JH 1805 = WH III 419, 1860 RA 14 18 31, NPD 52 54.1) is "very faint, small, considerably extended, very gradually brighter middle, extremely mottled but not resolved". The position precesses to RA 14 24 20.4, Dec +36 27 45, right on the galaxy listed above, the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 8435 km/sec, a straightforward calculation indicates that NGC 5616 is about 390 to 395 million light years away, in fair agreement with redshift-independent distance estimates of 340 to 360 million light years. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the galaxy was about 380 million light years away at the time the light by which we see it was emitted, about 385 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about 2.4 by 0.5 arcmin, it is about 265 thousand light years across.

Historical Identification: Per Dreyer, NGC 5617 (= GC 3885 = JH 3570, Dunlop 302, 1860 RA 14 19 23, NPD 150 05.3) is a "cluster, large, pretty rich, pretty compressed middle, stars of 8th magnitude and fainter". The position precesses to RA 14 29 47.6, Dec -60 43 04, near the center of the cluster listed above, the description fits and there is nothing comparable nearby, so the identification is certain.
Physical Information: NGC 5617 is about 5000 light years away. Given that and its apparent size of about 11 by 10 arcmin, it is about 15 light years across. It must be a binary cluster with Trumpler 22, which lies about 0.6 degrees south southeast of NGC 5617, as both clusters have the same distance, a radial velocity of about -38 km/sec, an age of about 70 million years, and their stars have similar metallicity (the relative abundance of iron, compared to hydrogen), indicating that they were probably formed from the same clouds of interstellar dust.

Physical Information: Pismis 19 is about 7800 light years away, and is considerably reddened by thick clouds of interstellar dust lying between us and it. Given that and its apparent isze of about 4 by 3 arcmin, it is about 10 light years across. Although apparently near NGC 5617, it lies nearly 3000 light years beyond it, and is about a billion (1000 million) years old, whereas NGC 5617 is only about 70 million years old; so the two clusters are completely separate objects in every sense of the phrase.

Physical Information: Trumpler 22 is about 5000 light years away. Given that and its apparent size of about 11 by 9 arcmin, it is about 5 light years across. It is a binary system with NGC 5617, which see for anything else.

Historical Identification: Per Dreyer, NGC 5618 (= GC 3886 = WH III 763, 1860 RA 14 20 01, NPD 91 37.5) is "extremely faint, small". The position precesses to RA 14 27 15.0, Dec -02 15 23, just off the eastern rim of the galaxy listed above, the description is reasonable and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 7130 km/sec, a straightforward calculation indicates that NGC 5618 is about 330 to 335 million light years away, in good agreement with redshift-independent distance estimates of 255 to 360 million light years. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the galaxy was about 320 to 325 million light years away at the time the light by which we see it was emitted, about 325 to 330 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about 1.8 by 1.3 arcmin, the galaxy is about 170 thousand light years across.

Historical Identification: Per Dreyer, NGC 5619 (= GC 3887 = JH 1806, 1860 RA 14 20 16, NPD 84 33.9) is "very faint, small, round, very gradually brighter middle". The position precesses to RA 14 27 16.5, Dec +04 48 14, on the western rim of the galaxy listed above, the description is a reasonable fit to the part of the galaxy visible in telescopes of the time and there is nothing comparable nearby, so the identification is certain.
Discovery Notes: Voigt's discovery was one of ten nebulae he discovered between March and August of 1865; but they were only noted in his observing records, and were not published until 1987, so Dreyer had no knowledge of his observation.
Physical Information: Based on a recessional velocity of 8385 km/sec, a straightforward calculation indicates that 5619 is about 390 million light years away, in good agreement with redshift-independent distance estimates of 290 to 390 million light years. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the galaxy was about 357 to 380 million light years away at the time the light by which we see it was emitted, about 380 to 385 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about 2.2 by 1.05 arcmin, the galaxy is about 240 to 245 thousand light years across.

Non-Standard Designations: The use of non-standard designations such as NGC 5619B should be discouraged, particularly as in this case, where the object has a perfectly good IC designation of its own. Such non-standard usage is very hit-and-miss, and there are many cases where it has led to data belonging to one object being mistakenly attributed to another; and though that does not appear to have occurred here, there is no good reason to use designations that increase the chances of catalog errors.
Physical Information: See IC 1016 for anything else.

Non-Standard Designations: PGC 51622 is usually called NGC 5619C, due to (per Corwin) Holmberg's listing the two galaxies east of NGC 5619 with non-standard designations. Since non-standard designations often lead to data for one galaxy being mistakenly applied to another their use should be discouraged, but when (as in this case) the non-standard designation is the best part of a century old, it is often the most common way of referring to the object in question.
Physical Information: Based on a recessional velocity of 8250 km/sec, a straightforward calculation indicates that PGC 51622 is about 385 million light years away. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the galaxy was about 370 to 375 million light years away at the time the light by which we see it was emitted, about 375 to 380 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about 1.1 by 1.05 arcmin, the galaxy is about 120 thousand light years across. (Note: A second recessional value of 9120 km/sec (z = 0.030418) listed in the NED, if correct, would correspond to a disance of about 410 million light years and a size of about 130 thousand light years.) PGC 51622 is listed as a Seyfert galaxy (type Sy 2).

Historical Identification: Per Dreyer, NGC 5620 (= GC 3888 = WH III 319, 1860 RA 14 20 18, NPD 17 44.4) is "extremely faint, very small". The position precesses to RA 14 21 56.9, Dec +71 37 25, but there is nothing there. Efforts to identify Herschel's III 319 have led to three different results. Until 2007, NGC 5620 was almost always identified as PGC 51356, but that is certainly incorrect; however, because of the relatively long time during which that identification was in use, it still shows up in catalogs in one way or another (for instance, as of late 2015 Steinicke identified NGC 5620 as a duplicate of NGC 5607 in all his databases, but used the position and physical information for PGC 51356 in his "Historical NGC"), so although certainly not NGC 5620, that galaxy is discussed immediately following the current candidates, which are PGC 51326 (discussed immediately below) and as covered by this entry, a duplicate observation of NGC 5607.
Discovery Notes:
Physical Information: Since probably a duplicate of NGC 5607, see that entry for anything else.

Historical Identification: See NGC 5620.
Physical Information: Vr 9521 z 0.031759, Apparent size about 0.55 by 0.3 arcmin

Historical Identification: See NGC 5620.
Physical Information: Apparent size about 0.55 by 0.55 arcmin Vr 9170 z 0.030588

Historical Identification: Per Dreyer, NGC 5621 (= GC 3889 = JH 1807 = WH III 14, 1860 RA 14 20 55, NPD 81 07.4) is "most extremely faint, large, mottled but not resolved". The position precesses to RA 14 27 48.7, Dec +08 14 48, less than 0.4 arcmin northwest of the group of stars listed above, the description is a reasonable fit for such a group observed under less than ideal conditions, and there is nothing else that either Herschel could have seen anywhere in the region, so the identification is considered certain. (Per Corwin, there is nothing at all at William Herschel's position, which is not entirely surprising since his paper states that the position was not verified, but his description fits John Herschel's observation, so the younger Herschel's decision that his 1807 was the same as his father's III 14 was almost certainly correct.)
Physical Information: Two 16th magnitude stars bracketing a 19th magnitude star. Listed in LEDA as PGC 5067508, but a search of the database for that designation returns no result, hence its being shown above in quotes.

Historical Identification: Per Dreyer, NGC 5622 (= GC 3890 = JH 1809 = WH III 677, 1860 RA 14 21 04, NPD 40 48.8) is "very faint, pretty small, very little extended, very gradually a little brighter middle". The position precesses to 14 26 08.7, Dec +48 33 19, about 0.8 arcmin southwest of the galaxy listed above, the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 3865 km/sec, NGC 5622 is about 180 million light years away, in good agreement with redshift-independent distance estimates of 125 to 245 million light years. Given that and its apparent size of about 1.7 by 0.8 arcmin, it is about 90 thousand light years across.

Historical Identification: Per Dreyer, NGC 5623 (= GC 3891 = JH 1808 = WH II 329, 1860 RA 14 21 13, NPD 56 07.2) is "considerably faint, small, round, very suddenly much brighter middle, mottled but not resolved". The position precesses to RA 14 27 10.2, Dec +33 14 59, on the eastern rim of the galaxy listed above, the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 3355 km/sec, NGC 5623 is about 155 to 160 million light years away. Given that and its apparent size of about 1.6 by 1.1 arcmin, it is about 70 to 75 thousand light years across.

Historical Identification: Per Dreyer, NGC 5624 (Swift list VI (#66), 1860 RA 14 21 23, NPD 37 45.4) is "extremely faint, small, a little extended". The second IC lists a corrected 1860 RA (per Bigourdan and Howe) of 14 21 43. The corrected position precesses to RA 14 26 32.8, Dec +51 36 47, about 1.8 arcmin north northwest of the galaxy listed above, but the description fits and there is nothing else nearby, so the identification is certain.
Discovery Notes: Although Dreyer only used Bigourdan and Howe's positions to correct Swift's RA, Howe's (1900) position of RA 14 23 09, Dec +52 02.1 precesses to dead center on the galaxy, so the apparent error noted above is due entirely to Dreyer's making only the minimum required correction.
Physical Information: Based on a recessional velocity of 1925 km/sec, NGC 5624 is about 90 million light years away. Given that and its apparent size of about 1.2 by 0.8 arcmin, it is about 30 to 35 thousand light years across.

Historical Identification: Per Dreyer, NGC 5625 (= GC 3892 = JH 1810, 1860 RA 14 21 26, NPD 49 25.0) is "very faint, small, round, gradually brighter middle". The position precesses to RA 14 27 03.0, Dec +39 57 12, on the southeastern rim of the galaxy listed above, the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 7650 km/sec, a straightforward calculation indicates that NGC 5625 is about 355 to 360 million light years away. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the galaxy was about 345 million light years away at the time the light by which we see it was emitted, about 350 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about 0.95 by 0.7 arcmin, the galaxy is about 95 thousand light years across. (Note: NED lists the star-forming region in the western arm of NGC 5625 as a supposedly separate galaxy, and therefore lists NGC 5625 as a pair of galaxies; but the images below show that is a mistake.)

Historical Identification: Per Dreyer, NGC 5626 (= GC 3893 = JH 3571, 1860 RA 14 21 35, NPD 119 07.5) is "extremely faint, small, round". The position precesses to RA 14 29 48.0, Dec -29 45 08, on the southwestern rim of the galaxy listed above, the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 6890 km/sec, NGC 5626 is about 315 to 320 million light years away. Given that and its apparent size of about 1.3 by 1.1 arcmin, it is about 120 thousand light years across.

Historical Identification: Per Dreyer, NGC 5627 (= GC 3894 = JH 1811, 1860 RA 14 21 48, NPD 77 59.2) is "very faint, very small, round, 9th magnitude star to southwest". The position precesses to RA 14 28 35.4, Dec +11 23 06, less than half an arcmin northeast of the galaxy listed above, the description fits (including the star to the west southwest) and there is nothing comparable nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 8015 km/sec, a straightforward calculation indicates that NGC 5627 is about 370 to 375 million light years away. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the galaxy was about 360 to 365 million light years away at the time the light by which we see it was emitted, about 365 to 370 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about 1.3 by 0.9 arcmin, the galaxy is about 135 to 140 thousand light years across. (If a second recessional velocity of 8210 km/sec listed in the NED is correct, the galaxy is about 370 million light years away, and about 140 thousand light years across.)

Physical Information: "PGC 4114155" is superimposed on the image of NGC 5627, and may be a physical companion of the larger galaxy, as the difference in their recessional velocities is within the normal range of peculiar (non-Hubble-expansion) velocities; but given the lack of any obvious interaction between the two, they are probably merely an optical double. Based on a recessional velocity of 7895 km/sec, a straightforward calculation indicates that "PGC 4114155" is about 365 to 370 million light years away. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the galaxy was about 355 to 360 million light years away at the time the light by which we see it was emitted, about 360 to 365 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time), or about 5 million light years in front of its apparent companion. Given that and its apparent size of about 0.1 by 0.03 arcmin, the galaxy is about 10 thousand light years across. (Listed in NED as SDSSJ142832.77+112245.7; listed in LEDA with the same designation and as PGC 4114155, but a search of the database for the PGC designation returns no result, hence its being shown in quotes.)

Historical Identification: Per Dreyer, NGC 5628 (Stephan list XIII (#75), 1860 RA 14 21 53, NPD 71 26.7) is "pretty faint, small, round, gradually brighter middle and nucleus equivalent to 14th magnitude star". The position precesses to RA 14 28 26.8, Dec +17 55 36, on the northeastern rim of the galaxy listed above, the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 5775 km/sec, NGC 5628 is about 265 to 270 million light years away. Given that and its apparent size of about 0.85 by 0.6 arcmin, it is about 65 to 70 thousand light years across.

Historical Identification: Per Dreyer, NGC 5629 (= GC 3895 = JH 1812, 1860 RA 14 22 00, NPD 63 31.5) is "pretty faint, small, round, gradually brighter middle". The position precesses to RA 14 28 15.9, Dec +25 50 48, right on the galaxy listed above, the description fits and there is nothing comparable nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 4500 km/sec, NGC 5629 is about 210 million light years away, in good agreement with redshift-independent distance estimates of 205 to 285 million light years. Given that and its apparent size of about 1.8 by 1.6 arcmin, it is about 110 thousand light years across. The galaxy has a similar recessional velocity to IC 1017, and they are therefore thought to be a physical pair.

Historical Identification: Per Dreyer, NGC 5630 (= GC 3896 = JH 1814 = WH II 674, 1860 RA 14 22 04, NPD 48 06.8) is "faint, small, extended 90°±, gradually brighter middle". The position precesses to RA 14 27 36.3, Dec +41 15 28, right on the galaxy listed above, the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 2655 km/sec, NGC 5630 is about 120 to 125 million light years across, in good agreement with redshift-independent distance estimates of 85 to 135 million light years. Given that and its apparent size of about 2.05 by 0.6 arcmin, it is about 70 to 75 thousand light years across.

Historical Identification: Per Dreyer, NGC 5631 (= GC 3897 = JH 1820 = WH I 236, 1860 RA 14 22 12, NPD 32 47.2) is "bright, small, round, pretty suddenly brighter middle and nucleus". The position precesses to RA 14 26 33.2, Dec +56 35 01, right on the galaxy listed above, the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 1945 km/sec, NGC 5631 is about 90 million light years across, in good agreement with widely varying redshift-independent distance estimates of 35 to 105 million light years. Given that and its apparent size of about 2.5 by 2.3 arcmin, it is about 65 thousand light years across. NGC 5631 is listed as a Seyfert galaxy (type Sy 2).

Historical Identification: Per Dreyer, NGC 5632 (= GC 3898, G. P. Bond (#20, HN 11), 1860 RA 14 22 12, NPD 89 49.1) is a "nebula, 11th magnitude star 150 seconds to east (Auwers 33)". The position precesses to RA 14 29 22.6, Dec -00 26 43, but there is nothing there save a completely stellar field; as a result, until very recently, one of those stars was thought to be what Herschel and Bond observed (note to self: need to add an image of the stellar field corresponding to the "traditional" NGC 5632). However, in 2015 Yann Pothier suggested and Steinicke showed that if Bond misidentified his 11th magnitude reference star, then the three apparently stellar objects he observed on the same night (NGC 5632, 5651 and 5658) were actually duplicates of other NGC objects (in this case, NGC 5691).
Discovery Notes: A later iteration of this page will discuss the situation (per Corwin) in some detail, and bring everything for this entry up to date. To make matters worse, for reasons currently not at all obvious, SIMBAD misidentifies NGC 5632 as PGC 51693, so that object is also discussed below.
Physical Information: Given the very late discovery of the duplicate entry, see NGC 5691 for anything else.

Historical Misidentification: See NGC 5632 for a discussion of the previous misidentification of this star as that NGC entry. (Note: Although LEDA lists this object as PGC 5067941, a search of the database for that designation returns no result.)

Historical Misidentification: To be discussed in the next iteration of this page.
Physical Information: Based on a recessional velocity of 7240 km/sec, a straightforward calculation indicates that PGC 51693 is about 335 to 340 million light years away. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the galaxy was about 325 to 330 million light years away at the time the light by which we see it was emitted, about 330 to 335 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about 0.8 by 0.6 arcmin, the galaxy is about 75 thousand light years across.

Historical Identification: Per Dreyer, NGC 5633 (= GC 3899 = JH 1818 = WH I 185, 1860 RA 14 22 14, NPD 43 13.4) is "considerably bright, pretty small, round, pretty gradually a little brighter middle". The position precesses to RA 14 27 28.0, Dec +46 08 52, right on the galaxy listed above, the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 2335 km/sec, NGC 5633 is about 105 to 110 million light years away, in good agreement with redshift-independent distance estimates of 75 to 175 million light years. Given that and its apparent size of about 2.2 by 1.2 arcmin, it is about 70 thousand light years across.

Historical Identification: Per Dreyer, NGC 5634 (= GC 3900 = JH 1813 = WH I 70, 1860 RA 14 22 16, NPD 95 21.0) is a "globular cluster, very bright, considerably large, round, gradually brighter middle, well resolved, clearly consisting of stars, stars of 19th magnitude, 8th magnitude star to southeast". The position precesses to RA 14 29 37.3, Dec -05 58 36, right on the cluster listed above, the description fits and there is nothing comparable nearby, so the identification is certain.
Physical Information: NGC 5634 is about 85 to 90 thousand light years away, and about 70 thousand light years from our Galaxy's center. Given that and its apparent size of about 5 arcmin, it is about 130 light years across. It is thought that the cluster may once have been part of the Sagittarius Dwarf Spheroidal Galaxy, but is now part of the Sagittarius "stream" of material pulled from that galaxy by the tidal force of our own galaxy.

Historical Identification: Per Dreyer, NGC 5635 (= GC 3901 = JH 1815 = WH III 132, 1860 RA 14 22 21, NPD 61 58.0) is "faint, small, extended, suddenly brighter middle". The position precesses to RA 14 28 33.0, Dec +27 24 20, on the southeastern rim of the galaxy listed above, the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 4315 km/sec, NGC 5635 is about 200 million light years away, in fair agreement with redshift-independent distance estimates of 220 to 265 million light years away. Given that and its apparent size of about 2.25 by 0.85 arcmin, the main galaxy is about 130 to 135 thousand light years across. However, the galaxy has a large region of extended material spread across its northern rim, particularly on its western margin, and a faint counter tail curling northwestward on its eastern end, whence its designation as a peculiar galaxy. The main region of extended material spans about 3.6 by 1.5 arcmin, corresponding to about 210 thousand light years, and with the much fainter northeastern extension the galaxy spans about 4.1 by 2.5 arcmin, corresponding to about 240 thousand light years. The galaxy is listed as a Seyfert galaxy (type Sy 3).

Historical Identification: Per Dreyer, NGC 5636 (= GC 3902 = GC 3905 = JH 1816 = WH II 580, 1860 RA 14 22 35, NPD 86 06.0) is "extremely faint, considerably large, round, northwestern of 2", the other being NGC 5638. The position precesses to RA 14 29 38.3, Dec +03 16 25, just off the northwestern rim of the galaxy listed above, the description fits and there is nothing nearby save for its aforementioned neighbor, so the identification is certain.
Physical Information: Based on a recessional velocity of 1745 km/sec, NGC 5636 is about 80 million light years away. Given that and its apparent size of about 1.3 by 0.9 arcmin, it is about 30 thousand light years across. Although listed as a lenticular galaxy, the star-formation activity observed throughout its ring and the hint of spiral arms on its northeastern and southwestern borders put it between a true lenticular and a peculiar spiral. Since the recessional velocities of NGC 5636 and 5638 are very similar, it is possible that they are a physically interacting pair, which might explain the peculiar appearance of the smaller galaxy.

Historical Identification: Per Dreyer, NGC 5637 (= GC 3903 = JH 1819 = WH II 357, 1860 RA 14 22 36, NPD 66 11.1) is "very faint, small, round, very gradually brighter middle". The position precesses to RA 14 28 58.0, Dec +23 11 17, only about 0.4 arcmin southwest of the galaxy listed above, the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 5245 km/sec, NGC 5637 is about 245 million light years away, in reasonable agreement with redshift-independent distance estimates of 190 to 230 million light years. Given that and its apparent size of about 0.95 by 0.6 arcmin, it is about 65 to 70 thousand light years across.

Historical Identification: Per Dreyer, NGC 5638 (= GC 3904 = JH 1817 = WH II 581, 1860 RA 14 22 37, NPD 86 08.4) is "considerably bright, pretty large, round, southeastern of 2", the other being NGC 5636. The position precesses to RA 14 29 40.4, Dec +03 14 01, right on the galaxy listed above, the description fits and there is nothing nearby save for its aforementioned neighbor, so the identification is certain.
Physical Information: ased on a recessional velocity of 1675 km/sec, NGC 5638 is about 75 to 80 million light years away, in good agreement with redshift-independent distance estimates of 50 to 95 million light years. Given that and its apparent size of about 2.4 by 2.1 arcmin, it is about 55 thousand light years across. Since the recessional velocities of NGC 5636 and 5638 are very similar, it is possible that they are a physically interacting pair, which might explain the peculiar appearance of the smaller galaxy.

Historical Identification: Per Dreyer, NGC 5639 (= GC 3906 = JH 1821, 1860 RA 14 22 41, NPD 58 58.3) is "very faint, round, 7th magnitude star to west, 11th magnitude star to south". The position precesses to RA 14 28 45.3, Dec +30 24 04, less than 0.8 arcmin south southwest of the galaxy listed above, there is nothing else nearby and the description of the nearby starfield makes the identification certain.
Physical Information: Based on a recessional velocity of 3555 km/sec, NGC 5639 is about 165 million light years away, in fair agreement with redshift-independent distance estimates of about 185 to 220 million light years. Given that and its apparent size of about 1.4 by 0.75 arcmin, it is about 65 to 70 thousand light years across.

Warning About Non-Standard Designations: In general, the use of non-standard designations (such as obtained by adding a letter to an NGC designation) should be avoided, as they are not officially assigned and different references sometimes use the same designation for different galaxies, increasing the chance that data belonging to one galaxy are accidentally attributed to another.
Physical Information: Based on a recessional velocity of 20685 km/sec, a straightforward calculation indicates that PGC 1902505 is about 965 million light years away. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the galaxy was about 885 to 890 million light years away at the time the light by which we see it was emitted, about 920 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about 0.35 by 0.25 arcmin, the galaxy is about 90 thousand light years across.

Historical Identification: Per Dreyer, NGC 5640 (= GC 3907 = WH III 949, 1860 RA 14 23 03, NPD 09 18.2) is "extremely faint, small, a little extended". The position precesses to RA 14 19 35.1, Dec +80 03 38, over 4.6 arcmin southwest of the galaxy listed above, and though the identification is considered the most likely, it is quite possible that it is wrong. (See Corwin)
Physical Information: Apparent size 0.9 by 0.4 arcmin

Historical Identification: Per Dreyer, NGC 5641 (Stephan list XI (#4), 1860 RA 14 23 09, NPD 60 33.0) is "pretty bright, pretty small, a little extended, much brighter middle, mottled but not resolved?". The position precesses to RA 14 29 17.2, Dec +28 49 26, well within the eastern outline of the galaxy listed above, the description fits and there is nothing else nearby so the identification is certain.
Physical Information: Based on a recessional velocity of 4345 km/sec, NGC 5641 is about 200 to 205 million light years away, in good agreement with redshift-independent distance estimates of about 120 to 240 million light years. Given that and its apparent size of about 2.4 by 1.4 arcmin, it is about 140 thousand light years across.

Historical Identification: Per Dreyer, NGC 5642 (= GC 3908 = JH 1822 = WH III 126, 1860 RA 14 23 11, NPD 59 21.6) is "considerably faint, small, star involved, 12th magnitude star to northeast". The position precesses to RA 14 29 16.1, Dec +30 00 50, just under an arcmin southeast of the galaxy listed above, the description fits and there is nothing else nearby, save for the star to the east that makes the identification certain.
Physical Information: NGC 5642 is a very distorted apparently elliptical galaxy, hence its designation here as a peculiar elliptical. Based on a recessional velocity of 4305 km/sec, it is about ? million light years away, in ? agreement with a pair of redshift-independent distance estimates of 200 to 205 million light years. Given that, the about 1.75 by 1.1 arcmin apparent size of the main galaxy corresponds to about ? thousand light years, while the approximately 4 by 2 arcmin apparent size of its northwest-southeast extensions span about ? thousand light years. The galaxy to its north (PGC 51748) is at a similar distance, and the odd appearance of the two galaxies may represent a physical interaction between them.

Physical Information: Based on a recessional velocity of 4630 km/sec, PGC 51748 is about 215 million light years away. Given that and its apparent size of about 0.65 by 0.55 arcmin, it is about 40 thousand light years across. The galaxy to its south (NGC 5642) is at a similar distance, and the odd appearance of the two galaxies may represent a physical interaction between them.

Historical Identification: Per Dreyer, NGC 5643 (= GC 3909 = JH 3572, Dunlop 469, 1860 RA 14 23 40, NPD 133 34.5) is "pretty bright, large, round, very gradually a little brighter middle, star involved". The position precesses to RA 14 32 38.7, Dec -44 11 50, within the southwestern outline of the galaxy listed above, the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity relative to the Cosmic Background Radiation of 1400 km/sec, NGC 5643 is about 65 million light years away, in fair agreement with redshift-independent distance estimates of about 30 to 55 million light years (the HST press release uses a distance of 60 million light years). Given that and its apparent size of about 5.75 by 4.65 arcmin (from the images below), it is about 110 thousand light years across. NGC 5643 is listed as a Seyfert galaxy (type Sy 2).

Historical Identification: Per Dreyer, NGC 5644 (Stephan list XI (#6), 1860 RA 14 23 40, NPD 77 27.0) is "pretty bright, pretty small, round, gradually much brighter middle". The position precesses to RA 14 30 26.0, Dec +11 55 32, right on the galaxy listed above, the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 7670 km/sec, a straightforward calculation indicates that NGC 5644 is about 355 to 360 million light years away. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the galaxy was about 345 to 350 million light years away at the time the light by which we see it was emitted, about 350 to 355 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about 1.9 by 1.8 arcmin, the galaxy is about 190 thousand light years across.

Historical Identification: Per Dreyer, NGC 5645 (= GC 3910 = JH 1823 = WH II 150, 1860 RA 14 23 44, NPD 82 05.9) is "considerably faint, pretty large, irregularly round, gradually brighter middle". The position precesses to RA 14 30 39.4, Dec +07 16 39, right on the galaxy listed above, the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 1370 km/sec, NGC 5645 is about 60 to 65 million light years away, in good agreement with redshift-independent distance estimates of 40 to 80 million light years. Given that and its apparent size of about 2.3 by 1.3 arcmin, it is about 40 to 45 thousand light years across. The galaxy has an apparent companion on its eastern rim (PGC 4419839), but that galaxy is more than six times further away, so they are merely an optical double.

Physical Information: Based on a recessional velocity of 8215 km/sec, a straightforward calculation indicates that PGC 4419839 is about 380 to 385 million light years away. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the galaxy was about 370 million light years away at the time the light by which we see it was emitted, about 375 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about 0.4 by 0.15 arcmin, the galaxy is about 40 to 45 thousand light years across. Although an apparent companion to NGC 5645, PGC 4419839 is over six times further away, so they are merely an optical double. (Note: NED lists this galaxy as AGC 249298, while LEDA lists it as AGC 249298 and as PGC 4419839; however, a search of the database for the PGC designation returns no result.)

Historical Identification: Per Dreyer, NGC 5646 (Stephan list XI (#5), 1860 RA 14 23 44, NPD 53 54.8) is "extremely faint, extended southwest-northeast, 45 arcsec long". The position precesses to RA 14 29 33.8, Dec +35 27 41, right on the galaxy listed above, the description is a reasonable fit and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 8575 km/sec, a straightforward calculation indicates that NGC 5646 is about 400 million light years away. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the galaxy was about 385 to 390 million light years away at the time the light by which we see it was emitted, about 390 to 395 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about 2.0 by 0.45 arcmin (counting its extended outer arms), the galaxy is about 225 thousand light years across.

Historical Identification: Per Dreyer, NGC 5647 (Stephan list XI (#7), 1860 RA 14 23 50, NPD 77 30.0) is "faint, small, round, very little brighter middle". The position precesses to RA 14 30 36.1, Dec +11 52 33, right on the galaxy listed above, the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 7330 km/sec, a straightforward calculation indicates that NGC 5647 is about 340 to 345 million light years away. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the galaxy was about 330 to 335 million light years away at the time the light by which we see it was emitted, about 335 to 340 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about 1.05 by 0.25 arcmin, the galaxy is about 100 thousand light years across.

Historical Identification: Per Dreyer, NGC 5648 (Bigourdan (list II #74), 1860 RA 14 23 50, NPD 75 21) is "very faint, small, no nucleus, h1824 near", h1824 being NGC 5649. The position precesses to RA 14 30 31.7, Dec +14 01 33, just off the northwestern rim of the galaxy listed above, the description fits and there is nothing nearby, so the identification is certain. See NGC 5649 for a discussion of the duplicate listing.
Physical Information: Based on a recessional velocity of 5155 km/sec, NGC 5648 is about 240 million light years away, in fair agreement with a single redshift-independent distance estimate of 195 million light years. Given that and its apparent size of about 0.95 by 0.55 arcmin, it is about 65 to 70 thousand light years across.

Historical Identification: Per Dreyer, NGC 5649 (= GC 3911 = JH 1824 = WH III 645, 1860 RA 14 23 54, NPD 75 22.3) is "extremely faint, very small, northwestern of 2", the other being NGC 5655. The position precesses to RA 14 30 35.7, Dec +14 00 15, about 1.4 arcmin southeast of the galaxy listed above, the description fits and there is nothing nearby save for the aforementioned neighbor, so the identification is certain.
Discovery Notes: When Bigourdan first observed the object the difference between his position and Herschel's misled him and Dreyer into presuming that NGC 5648 was a "nova"; but later observations convinced Bigourdan that his II #74 was the same as Herschel's GC 3911, and the second IC states (per Bigourdan) "5648 = 5649", so the duplication of the two entries has been known for more than a century. Despite that, although NGC 5648/49 is usually correctly referred to as NGC 5648, the galaxy to its southeast (which is NGC 5655) is usually misidentified as NGC 5649 (one example of why I am being so thorough in discussing the historical identifications of the NGC/IC objects).
Physical Information: Given the duplicate entry, see NGC 5648 for anything else.