Leo Triplet
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| Leo Triplet | |
|---|---|
| 300px
The Leo Triplet, with M65 (right top), M66 (right bottom) and
NGC 3628 (left). North is to the left. |
|
| Observation data (Epoch J2000) | |
| Constellation(s) | Leo |
| Right ascension | 11h 17m[1][2] |
| Declination | +13° 25′[1][2] |
| Brightest member | M66[1][2] |
| Number of galaxies | 3-5[1][2][3] |
| Other designations | |
| M66 Group, Arp 317,[4] LGG 231,[1] NOGG P1 533,[2] NOGG P2 543[2] |
|
| See also: Galaxy groups, Galaxy clusters, List of galaxy clusters | |
The Leo Triplet (also known as the M66 Group) is a small group of galaxies about 35 million light-years away[5] in the constellation Leo. This galaxy group consists of the spiral galaxies M65, M66, and NGC 3628.
Members
The table below lists galaxies that have been consistently identified as group members in the Nearby Galaxies Catalog,[3] the Lyons Groups of Galaxies (LGG) Catalog,[1] and the group lists created from the Nearby Optical Galaxy sample of Giuricin et al.[2]
| Name | Type[6] | R.A. (J2000)[6] | Dec. (J2000)[6] | Redshift (km/s)[6] | Apparent Magnitude[6] |
|---|---|---|---|---|---|
| M65 | SAB(rs)a | 11h 18m 56.0s | +13° 05′ 32″ | 807 ± 3 | 10.3 |
| M66 | SAB(s)b | 11h 20m 15.0s | +12° 59′ 30″ | 727 ± 3 | 9.7 |
| NGC 3628 | SAb pec | 11h 20m 17.0s | +13° 35′ 23″ | 843 ± 1 | 9.4 |
Additionally, some of the references cited above indicate that one or two other nearby galaxies may be group members. NGC 3593 is frequently but not consistently identified as a member of this group.
Nearby groups
The M96 Group is located physically near the Leo Triplet.[7] These two groups may actually be separate parts of a much larger group,[7] and some group identification algorithms actually identify the Leo Triplet as part of the M96 Group.[2][8]
Gallery
See also
- NGC 5866 Group – another small group of galaxies
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ VST Looks at the Leo Triplet — and Beyond
- ↑ 6.0 6.1 6.2 6.3 6.4 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 7.0 7.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
- The Leo Triplett (M66 group)
- The Leo Triplet on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- Lua error in package.lua at line 80: module 'strict' not found.
