10h48m34.7s, +12° 40′15″| M96 Group | |
|---|---|
| |
| Observation data (Epoch J2000[1][2]) | |
| Constellation(s) | Leo[3][4] |
| Right ascension | 10h48m 34.7s [1] |
| Declination | +12° 40′ 15″ [1] |
| Brightest member | M96[3][4] |
| Number of galaxies | 8-24[3][4][5][6] |
| Distance | 11.3 Mpc (37 Mly) [1] |
| Other designations | |
| Leo I Group,[6] LGG 217,[3] NOGG H 507,[4] NOGG P1 498,[4] NOGG P2 507[4] | |
| See also: Galaxy group, Galaxy cluster, List of galaxy groups and clusters | |
The M96 Group (also known as the Leo I Group) is a group of galaxies in the constellation Leo. This group contains between 8 and 24 galaxies, including three Messier objects.[3][4][5][6] It also contains the Leo Ring. The group is one of many groups that lies within the Virgo Supercluster (the combined Local Group and Virgo cluster).[7]
The table below lists galaxies that have been consistently identified as group members in the Nearby Galaxies Catalog,[5] the survey of Fouque et al.,[6] the Lyons Groups of Galaxies (LGG) Catalog,[3] and the three group lists created from the Nearby Optical Galaxy sample of Giuricin et al.[4]
| Name | Type[8][9] | R.A. (J2000)[8][9] | Dec. (J2000)[8][9] | Redshift (km/s)[8][9] | Apparent Magnitude[8][9] |
|---|---|---|---|---|---|
| M95 | SB(r)b | 10h43m 57.7s | +11° 42′ 14″ | 778 ± 4 | 11.4 |
| M96 | SAB(rs)ab | 10h46m 45.7s | +11° 49′ 12″ | 897 ± 4 | 10.1 |
| M105 | E1 | 10h47m 49.6s | +12° 34′ 54″ | 911 ± 2 | 10.2 |
| NGC 3299 | SAB(s)dm | 10h36m 23.8s | +12° 42′ 27″ | 641 ± 6 | 13.3 |
| NGC 3377 | E5.5 | 10h47m 42.4s | +13° 59′ 08″ | 665 ± 2 | 11.2 |
| NGC 3384 | SB(s)0 | 10h48m 16.9s | +12° 37′ 46″ | 704 ± 2 | 10.9 |
| NGC 3412 | SB(s)0 | 10h50m 53.3s | +13° 24′ 44″ | 841 ± 2 | 11.5 |
| NGC 3489 | SAB(rs)0 | 11h00m 18.6s | +13° 54′ 04″ | 677 ± 2 | 11.1 |
| Leo Ring | H I region | 10h48m 19.0s | +12° 41′ 21″ | 960 ± 80 |
The Leo Triplet, which includes the spiral galaxies M65, M66, and NGC 3628,[3][4][5] is located physically near the M96 Group.[10] Some group identification algorithms actually identify the Leo Triplet at part of the M96 Group.[4][6] The two groups may actually be separate parts of a much larger group.[10]
