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