Celestial Atlas
(NGC 3400 - 3449) ←     NGC Objects: NGC 3450 - 3499 Link for sharing this page on Facebook     → (NGC 3500 - 3549)
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3450, 3451, 3452, 3453, 3454, 3455, 3456, 3457, 3458, 3459, 3460, 3461, 3462, 3463, 3464, 3465, 3466,
3467, 3468, 3469, 3470, 3471, 3472, 3473, 3474, 3475, 3476, 3477, 3478, 3479, 3480, 3481, 3482, 3483,
3484, 3485, 3486, 3487, 3488, 3489, 3490, 3491, 3492, 3493, 3494, 3495, 3496, 3497, 3498, 3499

Page last updated Aug 24, 2015
Completed entry of all original NGC entries
WORKING: Add positions/physical data (per Steinicke)

NGC 3450 (= PGC 32270)
Discovered (Mar 22, 1835) by
John Herschel
A 12th-magnitude spiral galaxy (type SB(rs)b) in Hydra (RA 10 48 03.5, Dec -20 50 56)
Historical Identification: Per Dreyer, NGC 3450 (= GC 2250 = JH 3303, 1860 RA 10 46 26, NPD 110 06.2) is "very faint, large, round, very gradually a little brighter middle, mottled but not resolved".
Physical Information: Based on a recessional velocity of 4025 km/sec, NGC 3450 is about 185 million light years away. Given that and its apparent size of 2.7 by 2.4 arcmins, it is about 150 thousand light years across.
Wikisky image of NGC 3450
Above, a 3.6 arcmin wide closeup of NGC 3450
Below, a 12 arcmin wide region centered on the galaxy
Wikisky image of region around NGC 3450

NGC 3451
Discovered (Apr 11, 1785) by
William Herschel
Also observed (date?) by John Herschel
Historical Identification: Per Dreyer, NGC 3451 (= GC 2251 = JH 789 = WH II 364, 1860 RA 10 46 40, NPD 62 01.1) is "faint, pretty large, very little extended, very little brighter middle".
Physical Information:

NGC 3452
Discovered (1880) by
Andrew Common
Historical Identification: Per Dreyer, NGC 3452 (Common (#10), 1860 RA 10 46 45, NPD 100 37) is "extremely faint, round, north of small (faint) star".
Physical Information:

NGC 3453
Discovered (Mar 21, 1835) by
John Herschel
Historical Identification: Per Dreyer, NGC 3453 (= GC 2252 = JH 3304, 1860 RA 10 46 52, NPD 111 02.2) is "faint, small, round, brighter middle".
Physical Information:

NGC 3454
Discovered (Mar 17, 1831) by
John Herschel
Historical Identification: Per Dreyer, NGC 3454 (= GC 2253 = JH 790, 1860 RA 10 47 01, NPD 71 55.1) is "pretty faint, a little extended, northwestern of 2", the other being NGC 3455.
Physical Information:

NGC 3455
Discovered (Mar 21, 1784) by
William Herschel
Also observed (date?) by John Herschel
Historical Identification: Per Dreyer, NGC 3455 (= GC 2254 = JH 791 = WH II 82, 1860 RA 10 47 03, NPD 71 58.1) is "pretty faint, small, extended, gradually brighter middle, mottled but not resolved, southeastern of 2", the other being NGC 3454.
Physical Information:

NGC 3456
Discovered (Feb 8, 1785) by
William Herschel
Also observed (date?) by John Herschel
Historical Identification: Per Dreyer, NGC 3456 (= GC 2255 = JH 792 = WH IV 29, 1860 RA 10 47 12, NPD 105 17.0) is "extremely faint, attached to 12th magnitude star on east".
Physical Information:

NGC 3457 (=
NGC 3460)
Discovered (Mar 25, 1827) by Francis Baily (and later listed as NGC 3457)
Independently discovered (date?) by John Herschel (and later listed as NGC 3457)
Discovered (Mar 27, 1854) by R. J. Mitchell (and later listed as NGC 3460)
Historical Identification: Per Dreyer, NGC 3457 (= GC 2256 = JH 793, 1860 RA 10 47 22, NPD 71 38.9) is "2 or 3 small (faint) stars and nebulosity".
Discovery Notes: Obviously neither Herschel nor Dreyer were aware of Baily's earlier record, which was noticed only in recent decades.
Physical Information:

NGC 3458
Discovered (Apr 8, 1793) by
William Herschel
Historical Identification: Per Dreyer, NGC 3458 (= GC 2257 = WH I 268, 1860 RA 10 47 25, NPD 32 08.7) is "very bright, very small, round, stellar".
Physical Information:

NGC 3459
Discovered (Jan 5, 1887) by
Francis Leavenworth
Historical Identification: Per Dreyer, NGC 3459 (Leavenworth list II (#429), 1860 RA 10 47 32, NPD 106 16.5) is "very faint, small, extended, gradually brighter middle".
Physical Information:

NGC 3460 (=
NGC 3457)
Discovered (Mar 25, 1827) by Francis Baily (and later listed as NGC 3457)
Independently discovered (date?) by John Herschel (and later listed as NGC 3457)
Discovered (Mar 27, 1854) by R. J. Mitchell (and later listed as NGC 3460)
Also observed (Aug 24, 1883) by Lewis Swift (and later listed as NGC 3460)
Historical Identification: Per Dreyer, NGC 3460 (3rd Lord Rosse, Swift list I (#??), 1860 RA 10 47 45, NPD 71 38.5) is "pretty bright, round, no nearby stars (= h793??)", (JH) 793 being NGC 3457, and as it turned out, the supposition that this was a duplicate of the other NGC entry was correct.
Physical Information:

NGC 3461
Discovered (Mar 27, 1854) by
R. J. Mitchell
Historical Identification: Per Dreyer, NGC 3461 (3rd Lord Rosse, 1860 RA 10 47 57, NPD 71 36.0) is a "faint nebula 5 arcmin northeast of the last", meaning northeast of NGC 3460 = NGC 3457.
Physical Information:

NGC 3462
Discovered (Jan 23, 1784) by
William Herschel
Also observed (date?) by John Herschel
Also observed (Nov 13, 1877) by David Todd
Historical Identification: Per Dreyer, NGC 3462 (= GC 2258 = JH 794 = WH II 16, 1860 RA 10 48 02, NPD 81 33.7) is "very faint, very small, very little extended, pretty suddenly brighter middle".
Physical Information:

NGC 3463
Discovered (Mar 26, 1835) by
John Herschel
Historical Identification: Per Dreyer, NGC 3463 (= GC 2259 = JH 3305, 1860 RA 10 48 30, NPD 115 24.0) is "faint, small, round, gradually a little brighter middle".
Physical Information:

NGC 3464
Discovered (Jan 14, 1886) by
Ormond Stone
Also observed (date?) by Herbert Howe
Historical Identification: Per Dreyer, NGC 3464 (Ormond Stone list I (#178), 1860 RA 10 48 30, NPD 110 20.4) is "extremely faint, pretty large, extended 125".
The second IC lists a corrected RA (per Howe) of 10 47 51.<
Physical Information:

NGC 3465 (= PGC 33099)
Discovered (Apr 2, 1801) by
William Herschel
Also observed (Apr 4, 1832) by John Herschel
A 14th-magnitude spiral galaxy (type Sab) in Draco (RA 10 59 31.3, Dec +75 11 30)
Historical Identification: Per Dreyer, NGC 3465 (= GC 2260 = JH 795, 1860 RA 10 48 55, NPD 14 03.8) is "extremely faint, pretty large, round, very gradually a little brighter middle, double star to northeast".
Discovery Notes: One of a multitude of objects observed by William Herschel with his telescope misaligned with the meridian, resulting in large inexplicable errors in position. To be discussed here and in detail at another place (already posted, but need link).
Physical Information: A member of the NGC 3523 group. Based on recessional velocity of 7220 km/sec, about 320 million light years away. Given that and apparent size of 1.2 by 1.0 arcmins, about 110 thousand light years across.
Wikisky image of NGC 3465
Above, a 2.4 arcmin wide closeup of NGC 3465
Below, a 12 arcmin wide region centered on the galaxy
Wikisky image of region around NGC 3465

NGC 3466
Discovered (Jan 18, 1828) by
John Herschel
Historical Identification: Per Dreyer, NGC 3466 (= GC 2261 = JH 796, 1860 RA 10 48 55, NPD 79 30.0) is "very faint, 9th magnitude star at position angle 90, preceding (western) of 2", the other being NGC 3467.
Physical Information:

NGC 3467
Discovered (Jan 18, 1828) by
John Herschel
Historical Identification: Per Dreyer, NGC 3467 (= GC 2262 = JH 798, 1860 RA 10 49 24, NPD 79 29.8) is "very faint, round, very suddenly much brighter middle equivalent to 12th magnitude star, following (eastern) of 2", the other being NGC 3466.
Physical Information:

NGC 3468
Discovered (Mar 18, 1787) by
William Herschel
Also observed (date?) by John Herschel
Historical Identification: Per Dreyer, NGC 3468 (= GC 2263 = JH 797 = WH III 632, 1860 RA 10 49 34, NPD 48 18.1) is "faint, extremely small, round, brighter middle".
Physical Information:

NGC 3469
Discovered (May 7, 1836) by
John Herschel
Historical Identification: Per Dreyer, NGC 3469 (= GC 2264 = JH 3306, 1860 RA 10 49 59, NPD 103 33.4) is "most extremely faint, small".
Physical Information:

NGC 3470
Discovered (Apr 9, 1793) by
William Herschel
Also observed (date?) by John Herschel
Historical Identification: Per Dreyer, NGC 3470 (= GC 2265 = JH 799 = WH II 888, 1860 RA 10 50 06, NPD 29 44.8) is "very faint, small, round, very gradually brighter middle".
Physical Information:

NGC 3471
Discovered (Nov 28, 1801) by
William Herschel
Historical Identification: Per Dreyer, NGC 3471 (= GC 2266 = WH III 972, 1860 RA 10 50 15, NPD 27 39.1) is "very faint, small, round, brighter middle".
Physical Information:

NGC 3472
Discovered (1886) by
Ormond Stone
Historical Identification: Per Dreyer, NGC 3472 (Ormond Stone list I (#179), 1860 RA 10 50 30, NPD 108 53.4) is "extremely faint, small, round, gradually brighter middle".
Physical Information:

NGC 3473
Discovered (Mar 21, 1784) by
William Herschel
Historical Identification: Per Dreyer, NGC 3473 (= GC 2267 = WH III 67, 1860 RA 10 50 37, NPD 72 09.1) is "very faint, extended, between 2 stars".
Physical Information:

NGC 3474
Discovered (Apr 24, 1887) by
Lewis Swift
Historical Identification: Per Dreyer, NGC 3474 (Swift list VI (#39), 1860 RA 10 50 49, NPD 72 09.3) is "very faint, pretty small, round, south of III 67", (WH) III 67 being NGC 3473.
Physical Information:

NGC 3475
Discovered (Apr 10, 1785) by
William Herschel
Also observed (date?) by John Herschel
Historical Identification: Per Dreyer, NGC 3475 (= GC 2268 = JH 800 = WH III 332, 1860 RA 10 50 50, NPD 65 01.3) is "very faint, round, gradually brighter middle, 13th magnitude star 1 arcmin north per (WH), 2 arcmin south per (JH)".
Physical Information:

NGC 3476 (=
NGC 3480)
Discovered (Mar 25, 1865) by Albert Marth (and later listed as NGC 3476)
Discovered (1880) by Andrew Common (and later listed as NGC 3480)
Historical Identification: Per Dreyer, NGC 3476 (= GC 5544, Marth 213, 1860 RA 10 50 52, NPD 79 55) is "extremely faint, very small, almost stellar".
Physical Information:

NGC 3477
Discovered (Mar 25, 1865) by
Albert Marth
Historical Identification: Per Dreyer, NGC 3477 (= GC 5545, Marth 214, 1860 RA 10 50 57, NPD 79 58) is "most extremely faint, extremely small, stellar".
Physical Information:

NGC 3478
Discovered (Feb 5, 1788) by
William Herschel
Also observed (date?) by John Herschel
Historical Identification: Per Dreyer, NGC 3478 (= GC 2269 = JH 801 = WH III 705, 1860 RA 10 51 19, NPD 43 08.3) is "extremely faint, small, round".
Physical Information:

NGC 3479 (=
NGC 3502)
Discovered (1886) by Ormond Stone (and later listed as NGC 3479)
Discovered (1886) by Francis Leavenworth (and later listed as NGC 3502)
Historical Identification: Per Dreyer, NGC 3479 (Ormond Stone list I (#180), 1860 RA 10 51 30, NPD 104 12.4) is "extremely faint, pretty small, extended 90, gradually brighter middle and nucleus".
The second IC lists a corrected RA (per Howe) of 10 51 58.
Physical Information:

NGC 3480 (=
NGC 3476)
Discovered (Mar 25, 1865) by Albert Marth (and later listed as NGC 3476)
Discovered (1880) by Andrew Common (and later listed as NGC 3480)
Historical Identification: Per Dreyer, NGC 3480 (Common (#11), 1860 RA 10 51 34, NPD 79 54) is "small, stellar".
Physical Information:

NGC 3481
Discovered (1886) by
Ormond Stone
Historical Identification: Per Dreyer, NGC 3481 (Ormond Stone list II (#430), 1860 RA 10 52 11, NPD 96 48.4) is "extremely faint, very small, partially resolved (some stars seen), probably very faint cluster, 9th magnitude star 5 arcmin to southeast".
Physical Information:

NGC 3482
Discovered (Mar 1, 1835) by
John Herschel
Historical Identification: Per Dreyer, NGC 3482 (= GC 2270 = JH 3308, 1860 RA 10 52 16, NPD 135 49.4) is "extremely faint, small, round, gradually brighter middle".
Physical Information:

NGC 3483
Discovered (May 10, 1834) by
John Herschel
Historical Identification: Per Dreyer, NGC 3483 (= GC 2271 = JH 3307, 1860 RA 10 52 18, NPD 117 43.8) is "pretty faint, small, round, brighter middle, among stars".
Physical Information:

NGC 3484
Discovered (Apr 5, 1832) by
John Herschel
Historical Identification: Per Dreyer, NGC 3484 (= GC 2272 = JH 802, 1860 RA 10 52 29, NPD 13 25.8) is a "very doubtful object".
Physical Information:

NGC 3485
Discovered (Apr 8, 1784) by
William Herschel
Also observed (date?) by John Herschel
Historical Identification: Per Dreyer, NGC 3485 (= GC 2273 = JH 804 = JH 3309 = WH II 100, 1860 RA 10 52 39, NPD 74 25.0) is "faint, large, round, gradually a little brighter middle, mottled but not resolved".
Physical Information:

NGC 3486
Discovered (Apr 11, 1785) by
William Herschel
Also observed (date?) by John Herschel
Historical Identification: Per Dreyer, NGC 3486 (= GC 2274 = JH 805 = WH I 87, 1860 RA 10 52 45, NPD 60 16.5) is "considerably bright, considerably large, round, gradually much brighter middle".
Physical Information:

NGC 3487
Discovered (Mar 5, 1886) by
Lewis Swift
Historical Identification: Per Dreyer, NGC 3487 (Swift list III (#58), 1860 RA 10 52 45, NPD 71 40.4) is "most extremely faint, pretty small, round, very difficult".
Physical Information:

NGC 3488
Discovered (Apr 8, 1793) by
William Herschel
Also observed (date?) by John Herschel
Historical Identification: Per Dreyer, NGC 3488 (= GC 2275 = JH 803 = WH I 269, 1860 RA 10 52 50, NPD 31 34.9) is "per (JH) extremely faint, per (WH) considerably bright, very little extended, pretty small, 13th magnitude star attached on south".
Physical Information:

NGC 3489
Discovered (Apr 8, 1784) by
William Herschel
Also observed (date?) by John Herschel
Historical Identification: Per Dreyer, NGC 3489 (= GC 2276 = JH 806 = WH II 101, 1860 RA 10 52 56, NPD 75 21.0) is "very bright, pretty large, a little extended 80, suddenly much brighter middle and nucleus".
Physical Information:

NGC 3490
Discovered (1880) by
Andrew Common
Historical Identification: Per Dreyer, NGC 3490 (Common (#12), 1860 RA 10 53, NPD 79 55) is "very faint, small".
Physical Information:

NGC 3491
Discovered (Mar 11, 1784) by
William Herschel
Also observed (date?) by John Herschel
Historical Identification: Per Dreyer, NGC 3491 (= GC 2277 = JH 807 = WH III 21, 1860 RA 10 53 15, NPD 77 05.3) is "extremely faint, considerably small, round, brighter middle and nucleus".
Physical Information:

NGC 3492
Discovered (1880) by
Christian Peters
Historical Identification: Per Dreyer, NGC 3492 (Peters, 1860 RA 10 53 36, NPD 78 44.3) is "pretty faint, small, 9.5 magnitude star 20 seconds of time to west, 1 arcmin to south".
Physical Information:

NGC 3493
Discovered (Dec 24, 1827) by
John Herschel
Historical Identification: Per Dreyer, NGC 3493 (= GC 2278 = JH 808, 1860 RA 10 53 49, NPD 61 32.2) is "very faint, round, brighter middle, star to southwest".
Physical Information:

NGC 3494
Discovered (1882) by
Wilhelm Tempel
Historical Identification: Per Dreyer, NGC 3494 (Tempel list V (#??), 1860 RA 10 54 00, NPD 85 31.5) is "very small, h809 six arcmin to south", h809 being NGC 3495.
Physical Information:

NGC 3495
Discovered (Jan 27, 1786) by
William Herschel
Also observed (date?) by John Herschel
Historical Identification: Per Dreyer, NGC 3495 (= GC 2279 = JH 809 = WH III 498, 1860 RA 10 54 01, NPD 85 37.5) is "very faint, pretty large, much extended".
Physical Information:

NGC 3496
Discovered (Mar 14, 1834) by
John Herschel
Historical Identification: Per Dreyer, NGC 3496 (= GC 2280 = JH 3310, 1860 RA 10 54 12, NPD 149 34.8) is a "cluster, pretty large, pretty rich, a little compressed, star 1", the last being a typographical error for "star 13", meaning stars of 13th magnitude. Physical Information:

NGC 3497 (=
NGC 3525 = NGC 3528 = IC 2624)
Discovered (Mar 8, 1790) by William Herschel (and later listed as NGC 3497)
Discovered (Mar 22, 1835) by John Herschel (and later listed as NGC 3528)
Discovered (1886) by Ormond Stone (and later listed as NGC 3525)
Discovered (Apr 11, 1898) by Lewis Swift (and later listed as IC 2624)
Historical Identification: Per Dreyer, NGC 3497 (= GC 2281 = WH III 824, 1860 RA 10 54 29, NPD 108 43.2) is "very faint, very small, irregularly round, gradually a little brighter middle".
Physical Information:

NGC 3498
Discovered (Apr 8, 1784) by
William Herschel
Looked for but not found (date?) by Heinrich d'Arrest
Historical Identification: Per Dreyer, NGC 3498 (= GC 2282 = WH III 75, 1860 RA 10 54 30, NPD 74 52.2) is "extremely faint, pretty large (d'Arrest not found)".
Physical Information:

NGC 3499
Discovered (Apr 17, 1789) by
William Herschel
Historical Identification: Per Dreyer, NGC 3499 (= GC 2283 = WH III 793, 1860 RA 10 54 46, NPD 33 02.2) is "very faint, very small, stellar".
Physical Information:
Celestial Atlas
(NGC 3400 - 3449) ←     NGC Objects: NGC 3450 - 3499     → (NGC 3500 - 3549)