List Of Nearby Stellar Associations And Moving Groups
This is a list of nearby stellar associations and moving groups.
A stellar association is a very loose star cluster, looser than an open cluster. A moving group is the remnant of such a stellar association. Members of stellar associations and moving groups share similar kinematic properties, as well as similar ages and chemical composition.
The list (below) is sorted by the distance to the Solar System.
| Name | Associated star or cluster | Constellation | Average distance (light-years) | Age (million years) | Note | Reference |
|---|---|---|---|---|---|---|
| Oceanus | Luhman 16 | 6-160 | 510 | Closest moving group. | ||
| Castor Moving Group | Castor, DX Cancri, Vega, Fomalhaut, etc. | <80 | Disputed existence. | |||
| Ursa Major association | Alioth, Mizar, Merak, etc. | Ursa Major | 80 | 414 | ||
| AB Doradus moving group | AB Doradus | Dorado | 100 | 150 | ||
| β Pictoris moving group | β Pictoris | Pictor | 100 | 24 | ||
| Carina-Near moving group | Carina | 100 | 200 | |||
| Hercules-Lyra association | Hercules + Lyra | 100 | 260 | might be a stellar stream | ||
| Tucana-Horologium association | Tucana + Horologium | 150 | 45 | Formerly part of the GAYA (Great Austral Young Association) | ||
| Hyades | Hyades | Taurus | 153 | 750 | Closest open cluster. Reported for reference. | |
| Columba association | Columba | 160 | 42 | Formerly part of the GAYA (Great Austral Young Association) | ||
| TW Hydrae association | TW Hydrae | Hydra | 160 | 10 | ||
| Carina Association | Carina | 200 | 45 | Formerly part of the GAYA (Great Austral Young Association) | ||
| Argus association | IC 2391 | Vela + Carina | 240 | 45 | May or may not be related to IC 2391 | |
| Coma Star Cluster | Coma Star Cluster | Coma Berenices | 280 | 562 | Second closest open cluster. Reported for reference. | |
| Volans-Carina association | Volans + Carina | 280 | 90 | formerly Group 30 | ||
| 32 Orionis group | 32 Orionis | Orion | 310 | 22 | ||
| η Chamaeleontis moving group | η Chamaeleontis | Chamaeleon | 310 | 11 | ||
| χ1 Fornacis moving group | χ1 Fornacis | Fornax | 320 | 500 | other name: cluster Alessi 13 | |
| 118 Tau association | 118 Tauri | Taurus | 330 | 10 | ||
| ε Chamaeleontis association | ε Chamaeleontis | Chamaeleon | 330 | 3.7 | ||
| Group 10 | Ursa Major | 330 | 400 or ~1000 | proposed moving group; alternative name: Group X | ||
| Lower Centaurus–Crux association | Centaurus + Crux | 360 | 15 | Subgroup of the Scorpius–Centaurus association | ||
| Group 29 | Taurus | 380 | 40 | proposed moving group, overlaps with Taurus-Auriga, but is older | ||
| Taurus-Auriga association | Taurus + Auriga | 390 | 1.5 | See also: Taurus Molecular Cloud; part of the Radcliffe wave | ||
| Group 26 | Cassiopeia | 401 | <1000 | proposed moving group | ||
| Octans association | Octans | 420 | 35 | |||
| Upper Centaurus–Lupus association | Centaurus + Lupus | 420 | 16 | Subgroup of the Scorpius–Centaurus association | ||
| Upper Scorpius association | Scorpius | 420 | 10 | Subgroup of the Scorpius–Centaurus association | ||
| ρ Ophiuchi association | ρ Ophiuchi | Ophiuchus | 430 | 2 | See also: Rho Ophiuchi cloud complex | |
| Pleiades | Pleiades | Taurus | 444 | 112 | Third closest open cluster. Reported for reference. | |
| Corona Australis group | Corona Australis | 450 | 4.5 | |||
| Upper Corona Australis group | Corona Australis | 480 | 10 | |||
| Platais 8 cluster | Carina | 489 | 60 | Open cluster. Reported for reference. | ||
| μ Tau association | μ Eridani, μ Tauri | Taurus | 489 | 60 |
See also
References
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