NGC 903 is a lenticular galaxy in the constellation Aries. It is estimated to be about 230 million light-years from the Milky Way[3] and has a diameter of approximately 35,000 ly. NGC 903 was discovered on 13 December 1884 by the astronomer Edouard Stephan.[5][6]
NGC 903 | |
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![]() SDSS image of NGC 903 (right) and NGC 904 | |
Observation data (J2000 epoch) | |
Constellation | Aries |
Right ascension | 02h 24m 00.89555s[1] |
Declination | +27° 21′ 23.1264″[1] |
Redshift | 0.01682[2] |
Helio radial velocity | 5000 km/s[2] |
Distance | 231.0 ± 16.2 Mly (70.83 ± 4.97 Mpc)[3] |
Apparent magnitude (B) | 16.71[4] |
Other designations | |
PGC 9097[2] |
New General Catalogue 500 to 999 | |
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