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450, 451, 452, 453, 454, 455, 456, 457, 458, 459, 460, 461, 462, 463, 464, 465, 466,
467, 468, 469, 470, 471, 472, 473, 474, 475, 476, 477, 478, 479, 480, 481, 482, 483,
484, 485, 486, 487, 488, 489, 490, 491, 492, 493, 494, 495, 496, 497, 498, 499
Page last updated Jul 23, 2011
WORKING: Add positions/physical data (per Steinicke)
NGC 450
Discovered (Oct 1, 1785) by William Herschel
NGC 451 (= IC 1661)
Discovered (Nov 10, 1881) by Édouard Stephan (12-12) (and later listed as NGC 451)
Discovered (1890's?) by Edward Barnard (and later listed as IC 1661)
NGC 452
Discovered (Nov 22, 1827) by John Herschel
NGC 453 (= IC 1657
Discovered (Nov 10, 1881) by Édouard Stephan (12-13)
NGC 454
Discovered (Oct 5, 1834) by John Herschel
NGC 455
Discovered (Oct 27, 1864) by Albert Marth (#39)
NGC 456
Discovered (Aug 1, 1826) by James Dunlop (7, 10)
NGC 457
Discovered (Oct 18, 1787) by William Herschel
NGC 458
Discovered (Sep 6, 1826) by James Dunlop (60)
The second Index Catalog notes "probably a cluster, extremely small, close, no nebulosity seen by D.S. (Delisle Stewart)".
NGC 459
Discovered (Oct 15, 1784) by William Herschel
NGC 460
Possibly observed (Aug 1, 1826) by James Dunlop (D 8, 10?)
Discovered (Apr 11, 1834) by John Herschel
NGC 461
Discovered (Sep 25, 1834) by John Herschel
NGC 462
Discovered (Oct 23, 1864) by Albert Marth (#40)
NGC 463
Discovered (Dec 16, 1871) by Édouard Stephan (3-1)
NGC 464
Discovered (1882) by Wilhelm Tempel (V)
NGC 465
Discovered (Aug 1, 1826) by James Dunlop (8, 12)
The second Index Catalog notes (per Delisle Stewart) "Many stars, but no nebulosity, perhaps open cluster".
NGC 466
Discovered (Oct 3, 1836) by John Herschel
NGC 467
Discovered (Oct 8, 1785) by William Herschel
NGC 468 (= IC 92 = PGC 4780)
Discovered (Nov 22, 1827) by John Herschel (and later listed as NGC 468)
Discovered (Nov 2, 1885) by Guillaume Bigourdan (and later listed as IC 92)
A 14th-magnitude lenticular galaxy (type S0/a) in Pisces (RA 01 19 48, Dec +32 46 02)
(See IC 92 for a discussion of the double listing.) Based on recessional velocity of 5060 km/sec, about 225 million light years away. Given that and apparent size of 0.65 by 0.4 arcmins, about 45 thousand light years across. |
Above, a 1 arcmin wide closeup of NGC 468
Below, a 12 arcmin wide region centered on the galaxy |
NGC 469 (= PGC 4753)
Discovered (Nov 3, 1864) by Albert Marth (41)
A 14th-magnitude spiral galaxy (type S?) in Pisces (RA 01 19 33, Dec +14 52 19)
Based on recessional velocity of 4100 km/sec, about 180 million light years away. Given that and apparent size of 0.67 by 0.52 arcmins, about 35 thousand light years in diameter. |
Above, a closeup of NGC 469
Below, an approximately 15 arcmin wide region centered on NGC 469
The wide-field image also shows a distant cluster of galaxies, to the upper left of NGC 469 |
| The image below shows a closeup of the galaxy cluster near NGC 469 |
NGC 470
Discovered (Dec 13, 1784) by William Herschel
NGC 471
Discovered (Nov 3, 1864) by Albert Marth (44)
NGC 472
Discovered (Aug 29, 1862) by Heinrich d'Arrest
NGC 473
Discovered (Oct 15, 1784) by William Herschel
NGC 474
Discovered (Dec 13, 1784) by William Herschel
NGC 475 (= IC 97 = PGC 4796)
Discovered (Nov 3, 1864) by Albert Marth (43) (and later listed as NGC 475)
Discovered (Oct 12, 1888) by Guillaume Bigourdan (and later listed as IC 97)
A 15th-magnitude elliptical galaxy (type E3?) in Pisces (RA 01 20 02, Dec +14 51 40)
(See IC 97 for a discussion of the double listing.) Based on recessional velocity of 16115 km/sec, about 720 million light years away. Given that and apparent size of 0.6 by 0.45 arcmins, about 130 thousand light years across. Almost every object shown in the images below is a galaxy; so there is a good chance that this is one of the larger members of a distant cluster of galaxies. |
Above, a 1 arcmin wide closeup of NGC 475
Below, a 12 arcmin wide region centered on the galaxy |
NGC 476
Discovered (Nov 3, 1864) by Albert Marth (44)
NGC 477
Discovered (Oct 18, 1786) by William Herschel
NGC 478
Discovered (1886) by Francis Leavenworth (II-302)
NGC 479
Discovered (Oct 27, 1864) by Albert Marth (45)
NGC 480
Discovered (1886) by Francis Leavenworth (II-304)
NGC 481
Discovered (Nov 20, 1886) by Lewis Swift (6-7)
The second Index Catalog lists a corrected 1860 RA (per Howe) of 01 14 13.
NGC 482
Discovered (Oct 23, 1835) by John Herschel
NGC 483
Discovered (Nov 11, 1827) by John Herschel
NGC 484
Discovered (Oct 28, 1834) by John Herschel
NGC 485
Discovered (Jan 8, 1828) by John Herschel
NGC 486
Discovered (Dec 6, 1850) by Bindon Stoney
NGC 487
Discovered (Nov 28, 1885) by Francis Leavenworth (I-27)
The second Index Catalog lists a corrected 1860 RA (per Howe) of 01 15 04.
NGC 488
Discovered (Dec 13, 1784) by William Herschel
NGC 489
Discovered (Dec 22, 1862) by Heinrich d'Arrest
NGC 490
Discovered (Dec 6, 1850) by Bindon Stoney
NGC 491
Discovered (Sep 25, 1834) by John Herschel
NGC 492
Discovered (Dec 6, 1850) by Bindon Stoney
NGC 493
Discovered (Dec 20, 1786) by William Herschel
NGC 494
Discovered (Nov 22, 1827) by John Herschel
NGC 495
Discovered (Sep 12, 1784) by William Herschel
NGC 496
Discovered (Sep 12, 1784) by William Herschel
NGC 497 (= Arp 8 = PGC 4992)
Discovered (Nov 6, 1864) by Édouard Stephan (12-14)
A 13th-magnitude barred spiral galaxy (type SB(rs)bc) in Cetus (RA 01 22 24, Dec -00 52 29)
Listed as a member of Abell 194. Based on recessional velocity of 8140 km/sec, about 360 million light years away, in good agreement with redshift-independent distance estimates of 290 to 355 million light years. Given that and apparent size of 2.0 by 0.8 arcmins, about 200 thousand light years across. |
Above, a 2 arcmin wide closeup of Arp 8
Below, a 12 arcmin wide region centered on the galaxy
NGC 498
Discovered (Oct 23, 1856) by R. J. Mitchell
NGC 499 (= IC 1686)
Discovered (Sep 12, 1784) by William Herschel (and later listed as NGC 499)
Discovered (Dec 1, 1899) by Stephane Javelle (and later listed as IC 1686)
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