NGC 998 is a spiral galaxy in the constellation Cetus. It is estimated to be 294 million light years from the Milky Way and has a diameter of approximately 90,000 ly. Together with NGC 997, it forms a gravitationally bound pair of galaxies. NGC 998 was discovered by astronomer Albert Marth on 10 November 1863 using a 48-inch telescope.[4][5][6]
NGC 998 | |
---|---|
![]() SDSS image of NGC 998 | |
Observation data (J2000 epoch) | |
Constellation | Cetus |
Right ascension | 02h 37m 16.50891s[1] |
Declination | +07° 20′ 08.7169″[1] |
Redshift | 0.02184[2] |
Helio radial velocity | 6476 km/s[2] |
Distance | 303.7 ± 21.4 Mly (93.11 ± 6.56 Mpc)[3] |
Apparent magnitude (B) | 14.6[2] |
Absolute magnitude (V) | -23.46 +/- 0.51[2] |
Characteristics | |
Type | S?[2] |
Other designations | |
MCG +01-07-015, PGC 9934[2] |
New General Catalogue 500 to 999 | |
---|---|
| |
![]() | This spiral galaxy article is a stub. You can help Wikipedia by expanding it. |