NGC 3558 is an elliptical[2][3] or a lenticular galaxy located 440 million light-years away[4] in the constellation Ursa Major.[5] It was discovered by the astronomer Heinrich d'Arrest on April 15, 1866.[6] It is a member of the galaxy cluster Abell 1185[7] and is classified as a LINER galaxy.[2][3]
| NGC 3558 | |
|---|---|
SDSS image of NGC 3558. | |
| Observation data (J2000 epoch) | |
| Constellation | Ursa Major |
| Right ascension | 11h 10m 55.9s[1] |
| Declination | 28° 32′ 38″[1] |
| Redshift | 0.032139[1] |
| Helio radial velocity | 9635 km/s[1] |
| Distance | 440 Mly (135 Mpc)[1] |
| Group or cluster | Abell 1185 |
| Apparent magnitude (V) | 14.3[1] |
| Characteristics | |
| Type | E2,[2] S0p[1] |
| Size | ~170,000 ly (53 kpc) (estimated)[1] |
| Apparent size (V) | 0.97 x 0.86[1] |
| Other designations | |
| CGCG 155-89, CGCG 156-10, MCG 5-27-8, Mrk 422, PGC 33960[1] | |
New General Catalogue 3500 to 3999 | |
|---|---|
| |
This lenticular galaxy article is a stub. You can help Wikipedia by expanding it. |