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5250, 5251, 5252, 5253, 5254, 5255, 5256, 5257, 5258, 5259, 5260, 5261, 5262, 5263, 5264, 5265, 5266,
5267, 5268, 5269, 5270, 5271, 5272, 5273, 5274, 5275, 5276, 5277, 5278, 5279, 5280, 5281, 5282, 5283,
5284, 5285, 5286, 5287, 5288, 5289, 5290, 5291, 5292, 5293, 5294, 5295, 5296, 5297, 5298, 5299
Page last updated Jul 26, 2011
WORKING: Add positions/physical data (per Steinicke)
NGC 5250 (= PGC 47997)
Discovered (Apr 26, 1789) by William Herschel
A 13th-magnitude lenticular galaxy (type S0) in Ursa Major (RA 13 36 07.1, Dec +51 14 11)
Based on a recessional velocity of 4525 km/sec, NGC 5250 is about 210 million light years away. Given that and its apparent size of 1.3 by 0.95 arcmin, it is about 80 thousand light years across. |
Above, a 2.4 arcmin wide closeup of NGC 5250
Below, a 12 arcmin wide region centered on the galaxy; the star at upper left is 7th-magnitude HD 118557
NGC 5251
Discovered (Apr 11, 1785) by William Herschel
NGC 5252
Discovered (Feb 2, 1786) by William Herschel
NGC 5253
Discovered (Mar 15, 1787) by William Herschel
The second IC notes "In 1895 a new star appeared at the northwest end of this nebula. See diagram in Publ. A. S. Pac., viii. p. 221".
NGC 5254
Discovered (May 6, 1836) by John Herschel
NGC 5255
Discovered (Apr 17, 1789) by William Herschel
NGC 5256
Discovered (May 12, 1787) by William Herschel
NGC 5257
Discovered (May 13, 1793) by William Herschel
NGC 5258
Discovered (May 13, 1793) by William Herschel
NGC 5259
Discovered (Apr 27, 1865) by Heinrich d'Arrest
NGC 5260
Discovered (Apr 6, 1885) by Lewis Swift (1-24)
NGC 5261
Discovered (Apr 17, 1830) by John Herschel
NGC 5262
Discovered (May 5, 1831) by John Herschel
NGC 5263
Discovered (Apr 11, 1785) by William Herschel
NGC 5264
Discovered (Mar 30, 1835) by John Herschel
NGC 5265
Discovered (May 1, 1785) by William Herschel
NGC 5266
Discovered (Jul 1, 1834) by John Herschel
NGC 5267
Discovered (Apr 28, 1827) by John Herschel
NGC 5268
Discovered (Jan 17, 1855) by Edward Cooper
NGC 5269
Discovered (Apr 24, 1835) by John Herschel
NGC 5270
Discovered (Apr 7, 1828) by John Herschel
NGC 5271
Discovered (May 22, 1881) by Édouard Stephan (12a-50)
NGC 5272 (= M3)
Discovered (May 3, 1764) by Charles Messier
A 6th-magnitude globular cluster in Canes Venatici (RA 13 42 11.2, Dec +28 22 34)
Above, an image of M3 (Image Credit: S. Kafka & K. Honeycutt (Indiana University), WIYN, NOAO, NSF)
NGC 5273
Discovered (May 1, 1785) by William Herschel
NGC 5274
Discovered (May 25, 1881) by Édouard Stephan (12b-51)
NGC 5275
Discovered (May 25, 1881) by Édouard Stephan (12b-52)
NGC 5276
Discovered (Mar 27, 1856) by R. J. Mitchell
NGC 5277
Discovered (May 23, 1881) by Édouard Stephan (12b-53)
NGC 5278
Discovered (Apr 14, 1789) by William Herschel
NGC 5279
Discovered (May 4, 1831) by John Herschel
NGC 5280
Discovered (May 23, 1881) by Édouard Stephan (12b-54)
NGC 5281 (= OCL 911)
Discovered (1751) by Nicolas Lacaille (I.7)
A 6th-magnitude open cluster in Centaurus (RA 13 46 36.7, Dec -62 54 34)
Above, a 12 arcmin wide region centered on open cluster NGC 5281
NGC 5282
Discovered (May 22, 1881) by Édouard Stephan (12b-55)
NGC 5283
Discovered (Oct 7, 1866) by Heinrich d'Arrest
NGC 5284
Discovered (Jun 7, 1837) by John Herschel
NGC 5285
Discovered (Apr 29, 1881) by Édouard Stephan (11a-20)
NGC 5286
Discovered (Apr 29, 1826) by James Dunlop (388)
NGC 5287
Discovered (May 25, 1881) by Édouard Stephan (12b-56)
NGC 5288
Discovered (Apr 3, 1835) by John Herschel
NGC 5289
Discovered (Apr 9, 1787) by William Herschel
NGC 5290
Discovered (Mar 18, 1787) by William Herschel
NGC 5291
Discovered (May 8, 1834) by John Herschel
NGC 5292
Discovered (Mar 30, 1835) by John Herschel
NGC 5293
Discovered (Mar 21, 1784) by William Herschel
NGC 5294
Discovered (Apr 14, 1789) by William Herschel
NGC 5295
Discovered (Dec 20, 1797) by William Herschel
NGC 5296
Discovered (May 3, 1850) by George Stoney
NGC 5297
Discovered (Apr 9, 1787) by William Herschel
NGC 5298
Discovered (Mar 30, 1835) by John Herschel
NGC 5299
Discovered (Jun 7, 1837) by John Herschel
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