Celestial Atlas
(IC 950 - 999) ←     IC Objects: IC 1000 - 1049 Link for sharing this page on Facebook     → (IC 1050 - 1099)
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Page last updated Aug 24, 2017
WORKING: Check positions, historical IDs (Corwin+), add basic pix, captions, tags

IC 1000 (= PGC 51201)
Discovered (Jun 23, 1892) by
Stephane Javelle (284)
A magnitude 13.7 lenticular galaxy (type S0?) in Bo÷tes (RA 14 19 40, Dec +17 51 17)
Based on a recessional velocity of 5625 km/sec, IC 1000 is about 260 million light years away. Given that and apparent size of 0.9 by 0.5(?) arcmin, it is about 70 thousand light years across.
SDSS image of region near lenticular galaxy IC 1000
Above, a 12 arcmin wide SDSS image centered on IC 1000
Below, a 2.4 arcmin wide SDSS image of the galaxy
SDSS image of lenticular galaxy IC 1000

IC 1001 (= PGC 51249)
Discovered (Jun 29, 1892) by
Stephane Javelle (285)
A magnitude 13.9 spiral galaxy (type Scd?) in Virgo (RA 14 20 39.7, Dec +05 25 38)
Apparent size 0.75 by 0.25 arcmin.
SDSS image of region near spiral galaxy IC 1001
Above, a 12 arcmin wide SDSS image centered on IC 1001
Below, a 1.0 arcmin wide SDSS image of the galaxy
SDSS image of spiral galaxy IC 1001

IC 1002 (= PGC 51248)
Discovered (Jun 29, 1892) by
Stephane Javelle (286)
A magnitude 14.4 spiral galaxy (type S??) in Virgo (RA 14 20 42.3, Dec +05 29 09)
Apparent size 0.7 by 0.3 arcmin?

IC 1003 (= PGC 51303)
Discovered (Jun 29, 1892) by
Stephane Javelle (287)
A magnitude 14.0 spiral galaxy (type Sbc??) in Virgo (RA 14 21 29.8, Dec +05 04 23)
Apparent size 1.3 by 0.5 arcmin?

IC 1004 (= PGC 1538398)
Discovered (Jun 27, 1892) by
Stephane Javelle (288)
A magnitude 14.5 lenticular galaxy (type S0?? pec) in Bo÷tes (RA 14 20 50.3, Dec +17 39 55)
Apparent size 0.5 by 0.4 arcmin? Listed as accompanied by a magnitude 15.0 companion (apparent size 0.3 by 0.3 arcmin?) at RA 14 20 49.7, Dec +17 39 46.

IC 1005 (=
NGC 5607 = PGC 51182)
Discovered (Mar 16, 1785) by William Herschel (and later listed as NGC 5607)
Discovered (Jun 7, 1888) by Lewis Swift (VII-44) (and later listed as IC 1005)
A magnitude 13.4 spiral galaxy (type S?? pec) in Ursa Minor (RA 14 19 26.7, Dec +71 35 17)
This entry will probably contain only historical information; for anything else see NGC 5607.

IC 1006 (= PGC 51378)
Discovered (May 14, 1866) by
Truman Safford (15)
A magnitude 14.5 spiral galaxy (type S??) in Bo÷tes (RA 14 22 59.0, Dec +23 47 41)
Apparent size 1.0 by 0.6 arcmin?

IC 1007 (= PGC 51465)
Discovered (May 18, 1892) by
Stephane Javelle (289)
A magnitude 14.1 lenticular galaxy (type S0/(r)a? pec) in Virgo (RA 14 24 36.6, Dec +04 33 34)
Apparent size 0.4 by 0.4 arcmin?

IC 1008 (=
IC 4414 = PGC 51414)
Discovered (May 4, 1866) by Truman Safford (and later listed as IC 1008)
Discovered (Jul 27, 1895) by Stephane Javelle (and later listed as IC 4414)
A pair of interacting galaxies in Bo÷tes
A magnitude 15? spiral galaxy (type Sa? pec) at RA 14 23 42.2, Dec +28 20 47
A magnitude 15? spiral galaxy (type Sab? pec) at RA 14 23 42.6, Dec +28 20 50
Historical Identification: Per Dreyer, IC 1008 (= Safford 5, 1860 RA 14 18 52, NPD 61 01.8) is "pretty faint". The position precesses to RA 14 25 02.9, Dec +28 20 07, but there is nothing there. Corwin notes that Safford often had fairly large errors in right ascension, and suggests an identity with IC 4414, which is about 80 seconds of time west and a little less than an arcmin north of the IC position. That identification is accepted in some quarters, but Thomson suggests PGC 51518, and that is accepted in other quarters, hence its entry immediately below. Thomson's suggestion is based on the presumption that IC 4414 is too bright to be Safford's "pretty faint" object, but several other objects so described by Safford are the same or greater brightness than IC 4414, and PGC 51518 is much fainter than any of those, and in fact much fainter than another galaxy immediately to its southwest; so even if something in that area were to be adopted as IC 1008, PGC 51518 seems a less than suitable candidate. In any event, choosing anything near PGC 51518 as IC 1008 would require an error of 4 arcmin in declination, and Safford's declinations were usually much better than that, so I find Corwin's argument more compelling, and have accepted his identity with IC 4414.
Physical Information: Apparent size of southwestern component is about 0.6 by 0.35 arcmin; of northeastern component, about 0.55 by 0.5 arcmin; of combined structure about 0.8 by 0.6 arcmin.
SDSS image of region near the pair of peculiar spiral galaxies that comprise IC 1008
Above, a 12 arcmin wide SDSS image centered on IC 1008
Below, a 2.4 arcmin wide closeup of the interacting pair of galaxies
SDSS image of the pair of peculiar spiral galaxies that comprise IC 1008

PGC 51518 (not =
IC 1008)
Not an IC object but listed here since sometimes misidentified as IC 1008
A magnitude 16 spiral galaxy (type S?) in Bo÷tes (RA 14 25 38.4, Dec +28 16 04)
Historical Identification: As noted in the entry for IC 1008, there is another galaxy (PGC 3825995) near PGC 51518 that is considerably brighter, so even if something near it had to be chosen as IC 1008, PGC 51518 is not the best candidate. However, aside from its extreme faintness, equating PGC 51518 with IC 1008 would require an error of 4 arcmin in declination, and Safford's declinations were usually much better than that, so anything near PGC 51518 is almost certainly not IC 1008.
Physical Information: Apparent size 0.23 by 0.16 arcmin.
SDSS image of region near spiral galaxy PGC 51518, which is sometimes misidentified as IC 1008, also showing PGC 3825995
Above, a 12 arcmin wide SDSS image centered on PGC 51518, also showing PGC 3825995
Below, a 2.4 arcmin wide SDSS image of the galaxy
SDSS image of spiral galaxy PGC 51518, which is sometimes misidentified as IC 1008

PGC 3825995
Not an IC object but listed here since mentioned in the discussion of
PGC 51518
A magnitude 15? spiral galaxy (type Sc?) in Bo÷tes (RA 14 25 31.3, Dec +28 15 24)
Historical Identification: As noted in the discussion of PGC 51518, even if one were to accept the idea that something in its region is IC 1008, PGC 3825995 would be a much better candidate, as its brightness is more appropriate for IC 1008 than the much fainter PGC 51518. However, the 4 arcmin error in declination required makes it unlikely that anything in this region is Safford's object, so PGC 3825995 is listed here only as a reference for that discussion.
Physical Information: Apparent size 0.65 by 0.6 arcmin?
SDSS image of spiral galaxy PGC 3825995
Above, a 2.4 arcmin wide SDSS image of PGC 3825995; see PGC 51518 for a wide-field image

IC 1009 (= PGC 51546)
Discovered (Jun 17, 1892) by
Stephane Javelle (290)
A magnitude 14.5 spiral galaxy (type S??) in Bo÷tes (RA 14 26 17.5, Dec +12 21 12)
Apparent size 0.7 by 0.4 arcmin?

IC 1010 (= PGC 51612)
Discovered (Jun 8, 1893) by
Stephane Javelle (783)
A magnitude 12.8 spiral galaxy (type SBb??) in Virgo (RA 14 27 20.4, Dec +01 01 33)
Apparent size 1.9 by 1.8 arcmin?

IC 1011 (= PGC 51662)
Discovered (Jun 8, 1893) by
Stephane Javelle (784)
A magntude 13.7 spiral galaxy (type SAB(rs)bc?) in Virgo (RA 14 28 04.6, Dec +01 00 22)
Historical Identification:
Physical Information: Based on a recessional velocity of 7705 km/sec, a straightforward calculation indicates that IC 1011 is about 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 350 million light years away at the time the light by which we see it was emitted, about 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 0.5 by 0.3 arcmin, the galaxy is about 50 thousand light years across.
SDSS image of region near spiral galaxy IC 1011
Above, a 12 arcmin wide SDSS image centered on IC 1011
Below, a 1.0 arcmin wide SDSS image of the galaxy
SDSS image of spiral galaxy IC 1011

IC 1012 (=
IC 4431 = PGC 51600)
Discovered (May 9, 1866) by Truman Safford (8) (and later listed as IC 1012)
Discovered (Jul 9, 1896) by Stephane Javelle (and later listed as IC 4431)
A magnitude 13.5 spiral galaxy (type Sc??) in Bo÷tes (RA 14 27 09.5, Dec +30 56 54)
Apparent size 1.2 by 0.8 arcmin?

IC 1013 (= PGC 51643)
Discovered (Jun 16, 1892) by
Stephane Javelle (291)
A magnitude 14.6 spiral galaxy (type S??) in Bo÷tes (RA 14 27 50.8, Dec +25 50 19)
The second IC adds "NPD is 63░, not 62░. Erratum in Nice Obs." Apparent size 0.7 by 0.3 arcmin?

IC 1014 (= PGC 51685)
Discovered (Apr 27, 1867) by
Truman Safford (78)
A magnitude 12.4 spiral galaxy (type SBdm??) in Bo÷tes (RA 14 28 18.6, Dec +13 46 50)
Apparent size 2.7 by 2.0 arcmin?

IC 1015 (= PGC 51686)
Discovered (Jun 28, 1892) by
Stephane Javelle (292)
A magnitude 14.4 spiral galaxy (type S??) in Bo÷tes (RA 14 28 19.1, Dec +15 25 13)
Apparent size 0.7 by 0.4 arcmin?

IC 1016 (=
IC 4424 = PGC 51624 = "NGC 5619B")
Discovered (Apr 28, 1891) by Lewis Swift (and later listed as IC 1016)
Discovered (May 23, 1892) by Guillaume Bigourdan (and later listed as IC 4424)
A magnitude 14.1 spiral galaxy (type S(rs)bc?) in Virgo (RA 14 27 32.4, Dec +04 49 18)
Historical Identification: Per Dreyer, IC 1016 (Swift list X (#26), 1860 RA 14 21 50, NPD 84 32.7) is "very faint, very small, round, east of h1806", h1806 being NGC 5619. The position precesses to RA 14 28 50.3, Dec +04 49 37, but there is nothing there. Fortunately, Swift's declination was reasonably good and the description fits the galaxy listed above, which lies not far east of NGC 5619 (though nearly 80 seconds of time west of Swift's position). Per Corwin, all of Swift's "novae" of Apr 28, 1891 were poorly measured, three of five so poorly that they have yet to be identified; so the identification of IC 1016 is certain mainly because Swift mentioned its brighter neighbor.
Discovery Notes: Swift's poor position meant that when Bigourdan accurately measured the position of the galaxy, neither he nor Dreyer realized that it might be Swift's object, causing the duplicate listing. But though Bigourdan's position is good and Swift's very poor, standard practice is to use the lower NGC/IC number unless the recognition of the duplication is so recent that the higher number has already been in use for decades, so the galaxy is called IC 1016 about as often as IC 4424.
Non-Standard Designations: IC 1016 is usually called NGC 5619B, due to (per Corwin) Holmberg's listing the two galaxies east of NGC 5619 with non-standard designations. In general, a non-standard NGC designation merely adds an extra layer of confusion, but in this case perhaps the NGC designation can be considered reasonable, since the application of the IC designations is so hit-and-miss.
Physical Information: Based on a recessional velocity of 8075 km/sec, a straightforward calculation indicates that IC 1016 is about 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 365 million light years away at the time the light by which we see it was emitted, about 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 0.85 by 0.35 arcmin, the galaxy is about 90 thousand light years across.
SDSS image of region near spiral galaxy IC 1016, also showing NGC 5619
Above, a 12 arcmin wide SDSS image centered on IC 1016, also showing NGC 5619
Below, a 1 arcmin wide SDSS image of the galaxy
SDSS image of spiral galaxy IC 1016

IC 1017 (= PGC 51668)
Discovered (Jun 16, 1892) by
Stephane Javelle (293)
A magnitude 13.7 lenticular galaxy (type S0??) in Bo÷tes (RA 14 28 07.2, Dec +25 52 06)
Apparent size 1.0 by 0.5 arcmin?

IC 1018 (= PGC 51675)
Discovered (Jun 16, 1892) by
Stephane Javelle (294)
A magnitude 14.7 lenticular galaxy (type S0/a?) in Bo÷tes (RA 14 28 12.7, Dec +25 49 48)
Apparent size 0.7 by 0.4 arcmin?

IC 1019 (= PGC 51667)
Discovered (Jul 28, 1892) by
Stephane Javelle (295)
A magnitude 14.6 spiral galaxy (type S??) in Bo÷tes (RA 14 28 13.3, Dec +25 56 50)
Apparent size 0.4 by 0.3 arcmin?

IC 1020 (= PGC 51728)
Discovered (Jul 28, 1892) by
Stephane Javelle (296)
A magnitude 14.1 lenticular galaxy (type S0??) in Bo÷tes (RA 14 28 49.4, Dec +26 01 58)
Apparent size 1.2 by 0.3 arcmin?

IC 1021 (= PGC 51764)
Discovered (Jun 11, 1891) by
Stephane Javelle (297)
A magnitude 14.4 spiral galaxy (type SBa??) in Bo÷tes (RA 14 29 17.0, Dec +20 39 18)
Apparent size 1.1 by 0.8 arcmin?

IC 1022 (= PGC 51808)
Discovered (Jul 19, 1892) by
Stephane Javelle (298)
A magnitude 14.4 spiral galaxy (type Sb??) in Virgo (RA 14 30 01.9, Dec +03 46 22)
Apparent size 1.1 by 0.4 arcmin?

IC 1023
Discovered (1893) by
John Thome (CD -35 9596)
An open cluster in Centaurus (RA 14 32 25.1, Dec -35 48 13)
CD refers to the Cordoba Durchmusterung (the southern complement of the Bonner Durchmusterung), and -35 9596 means object number 9596 in the strip between declination -35 and -36. Apparent size 5.0 arcmin?

IC 1024 (= PGC 51895)
Discovered (Jun 2, 1891) by
Stephane Javelle (299)
A magnitude 12.9 lenticular galaxy (type S0??) in Virgo (RA 14 31 27.0, Dec +03 00 28)
Apparent size 1.6 by 0.6 arcmin?

IC 1025 (= PGC 51898)
Discovered (Jul 19, 1892) by
Stephane Javelle (300)
A magnitude 14.5 spiral galaxy (type S??) in Virgo (RA 14 31 28.4, Dec +07 03 47)
Apparent size 0.5 by 0.3 arcmin?

IC 1026 (=
NGC 5653 = PGC 51814)
Discovered (Mar 13, 1785) by William Herschel (and later listed as NGC 5653)
Discovered (May 11, 1866) by Truman Safford (13) (and later listed as IC 1026)
A magnitude 12.2 spiral galaxy (type Sb??) in Bo÷tes (RA 14 30 10.3, Dec +31 12 55)
This entry will be primarily concerned with historical information; for anything else see NGC 5653.

IC 1027 (= PGC 51796)
Discovered (Jul 23, 1887) by
Lewis Swift (VII-45)
A magnitude 14.5 spiral galaxy (type S??) in Bo÷tes (RA 14 29 48.4, Dec +53 57 56)
The second IC adds "Howe saw only one, with a 13th magnitude star 0.7 arcmin to the southwest". Apparent size 0.9 by 0.8 arcmin?

IC 1028 (= PGC 52531 =
NGC 5739, and not = PGC 52005)
Discovered (Mar 18, 1787) by William Herschel (and later listed as NGC 5739)
Also observed (May 1, 1828) by John Herschel (and later listed as NGC 5739)
Also observed (Sep 1, 1888) by Lewis Swift (and later listed as IC 1028)
A magnitude 12.1 lenticular galaxy (type SAB0(rs)a? pec) in Bo÷tes (RA 14 42 28.9, Dec +41 50 32)
Historical Misidentification: Per Dreyer, IC 1028 (Swift list VIII (#81), 1860 RA 14 27 05, NPD 47 32.2) is "pretty bright, small, round, faint star close to northeast". The position precesses to RA 14 32 32.3, Dec +41 50 40, but there is nothing there nor anywhere near there. However, per Corwin, the 1973 Uppsala Catalogue of Galaxies and Clusters of Galaxies (abbreviated CGCG) suggested that IC 1028 was PGC 52005, and despite an error of 45 seconds of time in right ascension and 10.7 arcmin in declination (which would be a very strange error for any of the NGC discoverers to have made), and the fact that the appearance of that galaxy doesn't fit Swift's description, that now certainly incorrect identification was generally accepted (for lack of anything better) until August 2017 (see the remaining paragraphs). But despite that error, given the 44 years during which IC 1028 was misidentified as PGC 52005, it is appropriate to discuss that galaxy in the following entry, if only as a warning about the former misidentification.
Swift's Observations of Sep 1, 1888: On the evening that Swift recorded his list VIII #81 he also recorded three other objects, of which only one (now known as IC 511) appeared to have a position corresponding to an actual object. The other three objects (which became IC 895, IC 1028 and IC 1045) lay in fields devoid of any reasonable candidate for what he might have seen. As it happens, IC 1028 and IC 1045 were eventually (in the early 1970's) assigned identifications to objects that really had nothing to recommend them, so their "identifications" have always been considered suspect; but in the case of IC 895, no one could think of any identification, reasonable or otherwise.
The Light Dawns: In mid August 2017 Steve Gottlieb suggested that IC 895 might be an observation of NGC 5273, with a 10 minute error in its right ascension, and while checking that possibility Harold Corwin discovered that assigning a correction of 10 minutes to the right ascensions of Swift's three "iffy" observations yielded positions that placed all of them near excellent candidates for what Swift observed. After receiving a private communication about this from Corwin, I discovered that even IC 511, though apparently a good fit for the galaxy that was assigned to its entry, also has an error of 10 minutes of time in its right ascension, and the presence of the now-former IC 511 was merely an accident. That makes it certain that Swift, who usually measured the positions of nebulae with setting circles instead of micrometric measurements, and often had consistent errors in right ascension due to mis-setting or mis-reading his setting circles, made a 10 minute error in right ascension throughout the night of Sep 1, 1888, and that the objects corresponding to right ascensions corrected for that error are what he actually observed.
The New Identification Of IC 1028: Adding 10 minutes to the 1860 position for IC 1028 (that is, changing it to 1860 RA 14 37 05) yields a position that precesses to RA 14 42 26.5, Dec +41 51 57, only about 1.5 arcmin north northwest of the galaxy listed above, the description fits and there is nothing else nearby, and since applying a similar correction in right ascension to all the objects observed by Swift on the night in question also yields far more satisfactory identifications for those IC entries, IC 1028 must be a misrecorded observation of NGC 5739.
Physical Information: Given the duplicate entry, see NGC 5739 for anything else.

PGC 52005 (not =
IC 1028)
Not an IC object, but listed here since misidentified as IC 1028 until August 2017
A magnitude 14.0 spiral galaxy (type SABbc?) in Bo÷tes (RA 14 33 16.4, Dec +41 39 01)
Historical Misidentification: As discussed in the entry for IC 1028, the previous identification of PGC 52005 as that IC object was very "iffy", and was finally proven to be incorrect in August 2017. However, given the 44 years during which that misidentification was found throughout the literature, it is probable that it will remain there for many years to come, so this entry is meant to serve as a warning about that error.
Physical Information: Based on a recessional velocity of 5325 km/sec (and H0 = 70 km/sec/Mpc), PGC 52005 is about 245 to 250 million light years away. Given that and its apparent size of about 1.4 by 0.5 arcmin (from the images below), it is about 100 to 105 thousand light years across.
SDSS image of region near spiral galaxy PGC 52005, which was long misidentified as IC 1028
Above, a 12 arcmin wide SDSS image centered on PGC 52005, which is not IC 1028
Below, a 1.75 arcmin wide SDSS image of the galaxy
SDSS image of spiral galaxy PGC 52005, which was long misidentified as IC 1028

IC 1029 (= PGC 51955)
Discovered (Jun 14, 1887) by
Guillaume Bigourdan (185)
A magnitude 12.4 spiral galaxy (type Sb??) in Bo÷tes (RA 14 32 27.2, Dec +49 54 16)
Apparent size 2.6 by 0.5 arcmin?

IC 1030 (=
NGC 5672 = PGC 51964)
Discovered (Mar 13, 1785) by William Herschel (and later listed as NGC 5672)
Discovered (May 4, 1866) by Truman Safford (6) (and later listed as IC 1030)
A magnitude 13.5 spiral galaxy (type Sb??) in Bo÷tes (RA 14 32 38.5, Dec +31 40 13)
This entry will be primarily concerned with historical information; for anything else see NGC 5672.

IC 1031 (= PGC 52082)
Discovered (May 6, 1888) by
Lewis Swift (VII-46)
A magnitude 14.8 spiral galaxy (type S??) in Bo÷tes (RA 14 34 23.9, Dec +48 02 17)
Apparent size 0.9 by 0.6 arcmin?

IC 1032 (= PGC 52097 + PGC 4126489)
Discovered (May 6, 1888) by
Lewis Swift (VII-47)
A pair of galaxies in Bo÷tes
PGC 52097 = A magnitude 15? lenticular galaxy (type S0/a?) at RA 14 34 39.1, Dec +47 58 06
PGC 4126489 = A magnitude 16? spiral galaxy (type SB0/(s)a? pec) at RA 14 34 39.5, Dec +47 58 05
(The PGC numbers shown here are taken from LEDA; NED reverses the designations.) Apparent size of PGC 52097 about 0.65 by 0.65 arcmin? of PGC 4126489 about 0.65 by 0.45 arcmin? Vr of PGC 52097 is 10905 km/sec; of PGC 4126489 is 10860 km/sec.
SDSS image of lenticular galaxy PGC 52097 and spiral galaxy PGC 4126489 (as defined by LEDA), which comprise IC 1032
Above, a 2.4 arcmin wide "closeup" of IC 1032
Below, a 12 arcmin wide region centered on the pair, also showing IC 1031 and 1033
SDSS image of region near the pair of galaxies that comprise IC 1032; also showing are IC 1031 and IC 1033

IC 1033 (= PC 52099)
Discovered (May 6, 1888) by
Lewis Swift (VII-48)
A magnitude 14.2 elliptical galaxy (type E4??) in Bo÷tes (RA 14 34 41.8, Dec +47 56 16)
Apparent size 1.1 by 0.7 arcmin?

IC 1034 (= PGC 52244)
Discovered (Jul 19, 1892) by
Stephane Javelle (301)
A magnitude 14.5 spiral galaxy (type S??) in Bo÷tes (RA 14 37 13.6, Dec +14 39 57)
Apparent size 1.1 by 0.6 arcmin?

IC 1035 (= PGC 52305)
Discovered (May 24, 1892) by
Stephane Javelle (302)
A magnitude 14.3 lenticular galaxy (type S0??) in Bo÷tes (RA 14 38 10.2, Dec +09 20 12)
Apparent size 0.4 by 0.4 arcmin?

IC 1036 (= PGC 52320)
Discovered (Jun 13, 1892) by
Stephane Javelle (303)
A magnitude 14.8 spiral galaxy (type S??) in Bo÷tes (RA 14 38 22.7, Dec +18 06 41)
Apparent size 0.5 by 0.2 arcmin?

IC 1037 (= PGC 52319)
Discovered (Jun 13, 1892) by
Stephane Javelle (304)
A magnitude 14.1 lenticular galaxy (type S0??) in Bo÷tes (RA 14 38 25.3, Dec +18 11 04)
Apparent size 0.8 by 0.5 arcmin?

IC 1038 (= PGC 52377)
Discovered (Jul 19, 1892) by
Stephane Javelle (305)
A magnitude 14.3 lenticular galaxy (type S0??) in Bo÷tes (RA 14 39 27.4, Dec +11 55 44)
Apparent size 0.4 by 0.3 arcmin?

IC 1039 (= PGC 52428)
Discovered (May 28, 1891) by
Stephane Javelle (306)
A magnitude 14.4 lenticular galaxy (type S0??) in Virgo (RA 14 40 29.3, Dec +03 26 00)
Apparent size 0.8 by 0.4 arcmin?

IC 1040 (= PGC 52418)
Discovered (May 24, 1892) by
Stephane Javelle (307)
A magnitude 14.4 spiral galaxy (type S??) in Bo÷tes (RA 14 40 22.5, Dec +09 28 39)
Apparent size 0.4 by 0.4 arcmin?

IC 1041 (= PGC 52434)
Discovered (May 28, 1891) by
Stephane Javelle (308)
A magnitude 14.3 spiral galaxy (type Sb??) in Virgo (RA 14 40 37.9, Dec +03 22 38)
Apparent size 0.7 by 0.4 arcmin?

IC 1042 (= PGC 52433, and with
NGC 5718 = Arp 171)
Discovered (May 28, 1891) by Stephane Javelle (309)
A magnitude 13.6 lenticular galaxy (type S0??) in Virgo (RA 14 40 38.7, Dec +03 28 11)
Apparent size 1.1 by 1.1 arcmin? Used by the Arp Atlas, with NGC 5718, as an example of galaxies with diffuse counter-tails (all such examples happening to be the result of gravitational interaction between the galaxies).
SDSS closeup of lenticular galaxies NGC 5718 and IC 1042, which comprise Arp 171
Above, a 2.4 arcmin wide closeup of IC 1042 and NGC 5718 (which see for more images)

IC 1043 (= PGC 2800989)
Discovered (May 28, 1891) by
Stephane Javelle (310)
A magnitude 15.1 spiral galaxy (type S??) in Virgo (RA 14 40 43.3, Dec +03 22 29)
Apparent size 0.4 by 0.2 arcmin?

IC 1044 (= PGC 52477)
Discovered (May 24, 1892) by
Stephane Javelle (311)
A magnitude 14.1 spiral galaxy (type S??) in Bo÷tes (RA 14 41 28.9, Dec +09 25 54)
Apparent size 1.1 by 0.7 arcmin?

IC 1045 (= PGC 52995, and not =
NGC 5731)
Not observed (Apr 9, 1787) by William Herschel (and later listed as NGC 5731)
Not observed (May 6, 1828) by John Herschel (and later listed as NGC 5731)
Discovered (Sep 1, 1888) by Lewis Swift (and later listed as IC 1045)
Until August 2017, thought to be NGC 5731, but now known to be PGC 52995
A magnitude 14(?) spiral galaxy (type SABcd? pec) in Bo÷tes (RA 14 50 39.4, Dec +42 44 28)
Historical Misidentification: Per Dreyer, IC 1045 (Swift list VIII (#82), 1860 RA 14 35 26, NPD 46 39.4) is "most extremely faint, pretty small, round, nearly between 2 stars". The position precesses to RA 14 40 45.1, Dec +42 44 31, but there is no good candidate for what Swift might have seen either there or near there. Despite that, for many years IC 1045 was identified as NGC 5731, simply because it is the closest object that he might have seen; but that was an arbitrary and not necessarily correct choice, because (1) NGC 5730, which has nearly the same declination as Swift's position, would be a more likely candidate for the sort of errors in right ascension that Swift most commonly made, and (2) if Swift had seen either NGC 5730 or 5731 he should have seen the other as well, and he gave no indication of seeing more than one object near his list VIII #82. As a result, the identification with NGC 5731 has always been considered suspect; but despite that, even though it has now been proven wrong (as discussed below), because of the decades during which IC 1045 was listed as a duplicate of NGC 5731, it will be necessary to have a warning about that error for years (if not decades) to come.
Swift's Observations of Sep 1, 1888: On the evening that Swift recorded his list VIII #82 he also recorded three other objects, of which only one (now known as IC 511) appeared to have a position corresponding to an actual object. The other three objects (which became IC 895, IC 1028 and IC 1045) lay in fields devoid of any reasonable candidate for what he might have seen. As it happens, IC 1028 and IC 1045 were eventually (in the early 1970's) assigned identifications to objects that really had nothing to recommend them, so their "identifications" have always been considered suspect; but in the case of IC 895, no one could think of any identification, reasonable or otherwise.
The Light Dawns: In mid August 2017 Steve Gottlieb suggested that IC 895 might be an observation of NGC 5273, with a 10 minute error in its right ascension, and while checking that possibility Harold Corwin discovered that assigning a correction of 10 minutes to the right ascensions of Swift's three "iffy" observations yielded positions that placed all of them near excellent candidates for what Swift observed. After receiving a private communication about this from Corwin, I discovered that even IC 511, though apparently a good fit for the galaxy that was assigned to its entry, also has an error of 10 minutes of time in its right ascension, and the presence of the now-former IC 511 was merely an accident. That makes it certain that Swift, who usually measured the positions of nebulae with setting circles instead of micrometric measurements, and often had consistent errors in right ascension due to mis-setting or mis-reading his setting circles, made a 10 minute error in right ascension throughout the night of Sep 1, 1888, and that the objects corresponding to right ascensions corrected for that error are what he actually observed.
The New Identification Of IC 1045: Adding 10 minutes to the 1860 position for IC 1045 (that is, changing it to 1860 RA 14 45 26) yields a position that precesses to RA 14 50 39.3, Dec +42 45 51, only about 1.4 arcmin north of the galaxy listed above, the description is a reasonable fit and there is nothing comparable nearby, and since applying a similar correction in right ascension to all the objects observed by Swift on the night in question also yields far more satisfactory identifications for those IC entries, IC 1045 must be a misrecorded observation of PGC 52995.
Notes About The Certainty Of The New Identification: The new identifications of IC 895 and IC 1028 involve relatively bright galaxies and original positions completely devoid of any nearby candidates, so the idea that they suffered from a common error in right ascension is compelling. But in the case of IC 1045 there are two possible candidates (admittedly well to the west of Swift's position), so it is partly the fact that if Swift had seen one he would certainly have seen and mentioned the other that disqualifies NGC 5730 and 5731. But the minimal error in the "corrected" position of IC 1045 relative to the actual position of PGC 52995, the common error in right ascension for all of Swift's observations of Sep 1, 1888, and the good fit of the description to PGC 52995 (though not round, it is faint enough that Swift would almost certainly have seen only its central core) make the identification of IC 1045 as PGC 52995 far more convincing than its earlier identification as (either) NGC 5731 (or 5730).
Physical Information: Based on a recessional velocity of 5465 km/sec (and H0 = 70 km/sec/Mpc), IC 1045 is about 255 million light years away. Given that and its apparent size of about 1.2 by 0.35 arcmin (from the images below), it is about 85 to 90 thousand light years away. Because of its complex structure and bright core, it is listed as a starburst galaxy.
SDSS image of region near spiral galaxy IC 1045
Above, a 12 arcmin wide SDSS image centered on IC 1045
Below, a 1.25 arcmin wide SDSS image of the galaxy
SDSS image of spiral galaxy IC 1045
Below, a 12 arcmin wide SDSS image showing Swift's position for IC 1045 and NGC 5730 and 5731
(Note that if Swift had seen either NGC object, he should have seen both)
SDSS image of region near Swift's erroneous position for IC 1045, also showing NGC 5730 and NGC 5731

IC 1046 (= PGC 52284)
Discovered (Jul 11, 1888) by
Lewis Swift (VII-49)
A magnitude 14.5 spiral galaxy (type Sc??) in Ursa Minor (RA 14 37 53.2, Dec +69 00 52)
Apparent size 0.8 by 0.4 arcmin?

IC 1047 (= PGC 52522)
Discovered (May 18, 1892) by
Stephane Javelle (312)
A magnitude 14.8 spiral galaxy (type Sb??) in Bo÷tes (RA 14 42 19.8, Dec +19 11 31)
Apparent size 0.7 by 0.6 arcmin?

IC 1048 (= PGC 52564)
Discovered (Jul 18, 1892) by
Stephane Javelle (313)
A magnitude 12.8 spiral galaxy (type S??) in Virgo (RA 14 42 57.9, Dec +04 53 27)
Apparent size 2.2 by 0.7 arcmin?

IC 1049 (= PGC 52379)
Discovered (Jul 2, 1889) by
Lewis Swift (IX-41)
A magnitude 13.8 spiral galaxy (type SBa?) in Draco (RA 14 39 33.0, Dec +62 00 11)
Apparent size 0.9 by 0.7 arcmin?
SDSS image of spiral galaxy IC 1049
Above, a 2.4 arcmin wide closeup of IC 1049
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near spiral galaxy IC 1049
Celestial Atlas
(IC 950 - 999) ←     IC Objects: IC 1000 - 1049     → (IC 1050 - 1099)