QuickLinks:
250, 251, 252, 253, 254, 255, 256, 257, 258, 259, 260, 261, 262, 263, 264, 265, 266,
267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283,
284, 285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299
Page last updated Jul 23, 2011
WORKING HERE: Add discoverer (per Steinicke)
WORKING HERE: Add description/position (per Steinicke)
NGC 250
Discovered (Nov 10, 1885) by Lewis Swift (3-2)
NGC 251
Discovered (Oct 15, 1784) by William Herschel
NGC 252
Discovered (Oct 26, 1786) by William Herschel
NGC 253 = the Sculptor Galaxy
Discovered (Sep 23, 1783) by Caroline Herschel
Above, a closeup of NGC 253 (Image Credits: ESO); also shown is PGC 198197
NGC 254
Discovered (Sep 28, 1834) by John Herschel
NGC 255
Discovered (Nov 27, 1785) by William Herschel
NGC 256
Discovered (Apr 11, 1834) by John Herschel
NGC 257
Discovered (Dec 29, 1790) by William Herschel
NGC 258
Discovered (Dec 22, 1848) by George Stoney
NGC 259
Discovered (Dec 13, 1786) by William Herschel
NGC 260
Discovered (Aug 27, 1865) by Heinrich d'Arrest
NGC 261
Discovered (Sep 5, 1826) by James Dunlop (4, 21)
NGC 262
Discovered (Sep 17, 1885) by Lewis Swift (2-10)
The second Index Catalog lists a corrected RA (per Bigourdan) of 00 41 15. |
NGC 263
Discovered (1886) by Francis Leavenworth (I-13)
NGC 264
Discovered (Aug 30, 1834) by John Herschel
NGC 265
Discovered (Apr 11, 1834) by John Herschel
An open cluster in Tucana (RA 00 47 11, Dec -73 28 43) About two hundred thousand light-years distant, in the Small Magellanic Cloud, are the 12th-magnitude open clusters NGC 265 and NGC 290. Each cluster spans about 65 light years, and contains hundreds or thousands of brilliant young stars. Most of the stars in these images are not cluster members, but lie in front of (in our own galaxy, or the Small Magellanic Cloud) or behind (in the Small Magellanic Cloud) the clusters. (E. Olszewski (U. Arizona), HST, ESA, NASA, Hubble Site) |
NGC 266
Discovered (Sep 12, 1784) by William Herschel
NGC 267
Discovered (Oct 4, 1836) by John Herschel
NGC 268
Discovered (Nov 22, 1785) by William Herschel
NGC 269
Discovered (Nov 5, 1836) by John Herschel
NGC 270
Discovered (Dec 10, 1798) by William Herschel
NGC 271
Discovered (Oct 1, 1785) by William Herschel
NGC 272
Discovered (Aug 2, 1864) by Heinrich d'Arrest
NGC 273
Discovered (Sep 10, 1785) by William Herschel
NGC 274
Discovered (Sep 10, 1785) by William Herschel
NGC 275
Discovered (Oct 9, 1828) by John Herschel
NGC 276 (= IC 1591)
Discovered (1886) by Frank Muller (list II-294) (and later listed as NGC 276)
Discovered (Nov 3, 1898) by DeLisle Stewart (#123) (and later listed as IC 1591)
The second Index Catalog lists a corrected RA (per Howe) of 00 45 14, and adds "the star to the northeast is an 8th magnitude close double". |
NGC 277
Discovered (Oct 8, 1864) by Heinrich d'Arrest
NGC 278
Discovered (Dec 11, 1786) by William Herschel
NGC 279
Discovered (Oct 1, 1785) by William Herschel
NGC 280
Discovered (Dec 5, 1785) by William Herschel
NGC 281 (= IC 11 ?)
Discovered (Nov 16, 1881) by Edward Barnard (a) (and later listed as NGC 281)
Perhaps reobserved (1890's?) by Edward Barnard (and later listed as IC 11)
A large emission nebula in Cassiopeia (RA 00 52 54, Dec +56 37 30)
(See IC 11 for a discussion of the possible identification of IC 11 as NGC 281.) The nebula is about 10 thousand light years away, and 100 light years in diameter. The view below is an approximately 45 arcmin wide region centered on the nebula |
NGC 282
Discovered (Oct 13, 1879) by Édouard Stephan (10-3)
NGC 283
Discovered (Oct 2, 1886) by Francis Leavenworth (I-14)
1st of 4 (the others being NGC 284, 285 and 286). The second Index Catalog lists a corrected position of (per Howe) RA 00 46 14, NPD 103 55.5.
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NGC 284
Discovered (Oct 2, 1886) by Francis Leavenworth (I-15)
2nd of 4 (the others being NGC 283, 285 and 286). (the The second Index Catalog lists a corrected position (per Howe) of RA 00 46 25, NPD 103 55.2. |
NGC 285
Discovered (Oct 2, 1886) by Francis Leavenworth (I-16)
3rd of 4 (the others being NGC 283, 284 and 286). The second Index Catalog lists a corrected position (per Howe) of RA 00 46 31, NPD 103 55.2. |
NGC 286
Discovered (Oct 2, 1886) by Francis Leavenworth (I-17)
4th of 4 (the others being NGC 283, 284 and 285). The second Index Catalog lists a corrected position (per Howe) of RA 00 46 31, NPD 103 52.4. |
NGC 287
Discovered (Nov 22, 1827) by John Herschel
NGC 288
Discovered (Oct 27, 1785) by William Herschel
NGC 289
Discovered (Sep 27, 1834) by John Herschel
NGC 290
Discovered (Apr 11, 1834) by John Herschel
An open cluster in Tucana (RA 00 51 15, Dec -73 09 45) About two hundred thousand light-years distant, in the Small Magellanic Cloud, are the 12th-magnitude open clusters NGC 265 and NGC 290. Each cluster spans about 65 light years, and contains hundreds or thousands of brilliant young stars. Most of the stars in these images are not cluster members, but lie in front of (in our own galaxy, or the Small Magellanic Cloud) or behind (in the Small Magellanic Cloud) the clusters. (ESA & NASA; Acknowledgement: E. Olszewski (U. Arizona) HST, apod060501) |
NGC 291
Discovered (Sep 27, 1864) by Albert Marth (#17)
NGC 292 (= PGC 3085) = the Small Magellanic Cloud
Discovered (1501) by Amerigo Vespucci
A 2nd-magnitude dwarf barred spiral galaxy (type SB(s)m pec) in Tucana (RA 00 52 45, Dec -72 49 43)
The Small Magellanic Cloud is a satellite or companion of our Milky Way Galaxy. Its recessional velocity of 158 km/sec is too small, in comparison to normal peculiar velocities (non-Hubble-redshift motions) to provide a reasonable estimate of distance. Redshift-independent distance estimates range from 160 to 250 thousand light years distance. At that distance, the SMC's apparent size of 315 by 235 arcmins implies a diameter of 18 thousand light years. (Image Credit: ESA/Hubble and Digitized Sky Survey 2. Acknowledgements: Davide De Martin (ESA/Hubble) HST) |
NGC 293
Discovered (Sep 27, 1864) by Albert Marth (#18)
NGC 294
Possibly observed (Sep 5, 1826) by James Dunlop (D 5,6 ?)
Discovered (Apr 11, 1834) by John Herschel
NGC 295
Discovered (Oct 26, 1872) by Ralph Copeland
NGC 296
Discovered (Sep 12, 1784) by William Herschel
NGC 297
Discovered (Sep 27, 1864) by Albert Marth (#19)
NGC 298
Discovered (Sep 27, 1864) by Albert Marth (#20)
NGC 299
Discovered (Aug 12, 1834) by John Herschel
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