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2917, 2918, 2919, 2920, 2921, 2922, 2923, 2924, 2925, 2926, 2927, 2928, 2929, 2930, 2931, 2932, 2933,
2934, 2935, 2936, 2937, 2938, 2939, 2940, 2941, 2942, 2943, 2944, 2945, 2946, 2947, 2948, 2949
Page last updated Jul 25, 2011
WORKING: Add positions/physical data (per Steinicke)
NGC 2900 (= PGC 26974)
Discovered (Mar 10, 1886) by Lewis Swift (3-45)
A 13th-magnitude barred spiral galaxy (type SBcd) in Hydra (RA 09 30 15, Dec +04 08 37)
Based on recessional velocity of 5340 km/sec, about 240 million light years away. Given that and apparent size of 1.1 by 1.0 arcmin, about 75 thousand light years across. |
Above, a 2.4 arcmin wide closeup of NGC 2900
Below, a 12 arcmin wide region centered on the galaxy
NGC 2901
Discovered (1886) by Ormond Stone (I-155)
NGC 2902
Discovered (Feb 8, 1785) by Wiliam Herschel
NGC 2903 (= PGC 27077)
Discovered (Nov 16, 1784) by William Herschel
A 9th-magnitude barred spiral galaxy (type SAB(rs)bc) in Leo (RA 09 32 10, Dec +21 29 57)
The recessional velocity of 555 km/sec is too small, in comparison to peculiar (non-Hubble-expansion) velocities, to provide a reliable distance indicator. However, the corresponding distance of 25 million light years is in good agreement with redshift-independent distance estimates of 20 to 40 million light years. Given that, the apparent size of 12.6 by 6.0 arcmin suggests that it is about 110 thousand light years across. The galaxy contains a number of HII regions, one of which has its own NGC listing (NGC 2905, which see). |
Above, a 12 arcmin wide "closeup" of NGC 2903
Below, a similar view showing a more detailed view of the dust lanes
(Image Credits: Tracey and Russ Birch/Flynn Haase/AURA/NSF/NOAO)
Below, a 15 arcmin wide GALEX X-ray image of the galaxy (Image Credits: NASA)
Below, the central bar and eastern portion of the galaxy (Image Credits: HST/NASA)
NGC 2904 (= PGC 26981)
Discovered (Apr 11, 1834) by John Herschel
A 12th-magnitude spiral galaxy (type SAB0^-(s)?) in Antlia (RA 09 30 17, Dec -30 23 06)
Based on recessional velocity of 2340 km/sec, about 105 million light years away, in good agreement with redshift-independent distance estimates of 75 to 195 million light years. Given that and apparent size of 1.5 by 1.0 arcmin, about 50 thousand light years across. |
Above, a 2.4 arcmin wide closeup of NGC 2904
Below, a 12 arcmin wide region centered on the galaxy
NGC 2905
Discovered (Nov 16, 1784) by William Herschel
An emission nebula in NGC 2903 (RA 09 32 12, Dec +21 31 07)
Above, a 12 arcmin wide view of the galaxy, with a box showing the location of NGC 2905
Below, a HST closeup of the eastern portion of the galaxy, with a similar box (Image Credits: HST/NASA)
NGC 2906
Discovered (Dec 28, 1785) by William Herschel
NGC 2907
Discovered (Dec 31, 1785) by William Herschel
NGC 2908
Discovered (Sep 26, 1802) by William Herschel
NGC 2909
Discovered (Mar 12, 1828) by John Herschel
NGC 2910
Discovered (Apr 10, 1834) by John Herschel
NGC 2911
Discovered (Mar 11, 1784) by William Herschel
NGC 2912
Discovered (Apr 3, 1870) by Herman Schultz (h 608)
NGC 2913
Discovered (Mar 10, 1864) by Albert Marth (169)
NGC 2914
Discovered (Mar 3, 1786) by William Herschel
NGC 2915
Discovered (Mar 31, 1837) by John Herschel
NGC 2916
Discovered (Nov 16, 1784) by William Herschel
NGC 2917
Discovered (Feb 6, 1864) by Albert Marth (170)
NGC 2918
Discovered (Mar 13, 1785) by William Herschel
NGC 2919
Discovered (Feb 1, 1877) by Wilhelm Tempel (I-24, V-4)
NGC 2920
Discovered (Feb 1, 1837) by John Herschel
NGC 2921
Discovered (Dec 24, 1786) by William Herschel
NGC 2922
Discovered (Mar 18, 1884) by Édouard Stephan (13-48)
NGC 2923
Discovered (Apr 1, 1864) by Albert Marth (171)
NGC 2924
Discovered (Feb 12, 1836) by John Herschel
NGC 2925
Discovered (Jan 5, 1837) by John Herschel
NGC 2926
Discovered (Mar 27, 1886) by Johann Palisa (2)
NGC 2927
Discovered (Feb 21, 1863) by Heinrich d'Arrest
NGC 2928
Discovered (Apr 1, 1864) by Albert Marth (172)
NGC 2929
Discovered (Feb 21, 1863) by Heinrich d'Arrest
NGC 2930
Discovered (Feb 21, 1863) by Heinrich d'Arrest
NGC 2931
Discovered (Feb 21, 1863) by Heinrich d'Arrest
NGC 2932
Discovered (Mar 3, 1837) by John Herschel
NGC 2933
Discovered (Apr 1, 1864) by Albert Marth (173)
NGC 2934
Discovered (Apr 2, 1865) by Albert Marth (174)
NGC 2935
Discovered (Mar 20, 1786) by William Herschel
NGC 2936
Discovered (Mar 3, 1864) by Albert Marth (175)
NGC 2937
Discovered (Mar 3, 1864) by Albert Marth (176)
NGC 2938
Discovered (Apr 2, 1801) by William Herschel
NGC 2939
Discovered (Jan 18, 1784) by William Herschel
NGC 2940
Discovered (1877) by Wilhelm Tempel (I-25)
NGC 2941
Discovered (Apr 1, 1864) by Albert Marth (177)
NGC 2942
Discovered (Mar 6, 1828) by John Herschel
NGC 2943
Discovered (Apr 1, 1864) by Albert Marth (178)
NGC 2944
Discovered (Mar 27, 1886) by Johann Palisa (3)
NGC 2945
Discovered (Jan 23, 1835) by John Herschel
NGC 2946
Discovered (Apr 1, 1864) by Albert Marth (179)
NGC 2947 (= IC 547 = IC 2494)
Discovered (May 6, 1886) by Francis Leavenworth (I-156) (and later listed as NGC 2947)
Discovered (Apr 20, 1892) by Stephane Javelle (and later listed as IC 547)
Discovered (Feb 20, 1898) by Lewis Swift (and later listed as IC 2494)
NGC 2948
Discovered (Mar 24, 1786) by William Herschel
NGC 2949
Discovered (Apr 1, 1864) by Albert Marth (180)
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