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List of nearby stellar associations and moving groups
From Wikipedia, the free encyclopedia
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.
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The list (below) is sorted by the distance to the Solar System.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/8/82/Sky_Map_7_-_Paper_29.png/640px-Sky_Map_7_-_Paper_29.png)
More information Name, Associated star or cluster ...
Name | Associated star or cluster | Constellation | Average distance (light-years) | Age (million years) | Note | Reference |
---|---|---|---|---|---|---|
Oceanus | Luhman 16 | 6-160 | 510 | Closest moving group. | [1] | |
Castor Moving Group | Castor, DX Cancri, Vega, Fomalhaut, etc. | <80 | Disputed existence. | |||
Ursa Major association | Alioth, Mizar, Merak, etc. | Ursa Major | 80 | 414 | [2] | |
AB Doradus moving group | AB Doradus | Dorado | 100 | 150 | [2] | |
β Pictoris moving group | β Pictoris | Pictor | 100 | 24 | [2] | |
Carina-Near moving group | Carina | 100 | 200 | [2] | ||
Hercules-Lyra association | Hercules + Lyra | 100 | 260 | might be a stellar stream[3] | [4] | |
Tucana-Horologium association | Tucana + Horologium | 150 | 45 | Formerly part of the GAYA (Great Austral Young Association) | [2][5] | |
Hyades | Hyades | Taurus | 153 | 750 | Closest open cluster. Reported for reference. | [2] |
Columba association | Columba | 160 | 42 | Formerly part of the GAYA (Great Austral Young Association) | [2][5] | |
TW Hydrae association | TW Hydrae | Hydra | 160 | 10 | [2] | |
Carina Association | Carina | 200 | 45 | Formerly part of the GAYA (Great Austral Young Association) | [2][5] | |
Argus association | IC 2391 | Vela + Carina | 240 | 45 | May or may not be related to IC 2391 | [6][7] |
Coma Star Cluster | Coma Star Cluster | Coma Berenices | 280 | 562 | Second closest open cluster. Reported for reference. | [8][2] |
Volans-Carina association | Volans + Carina | 280 | 90 | formerly Group 30 | [9][10] | |
32 Orionis group | 32 Orionis | Orion | 310 | 22 | [2] | |
η Chamaeleontis moving group | η Chamaeleontis | Chamaeleon | 310 | 11 | [2][11] | |
χ1 Fornacis moving group | χ1 Fornacis | Fornax | 320 | 500 | other name: cluster Alessi 13 | [2] |
118 Tau association | 118 Tauri | Taurus | 330 | 10 | [2] | |
ε Chamaeleontis association | ε Chamaeleontis | Chamaeleon | 330 | 3.7 | [2] | |
Group 10 | Ursa Major | 330 | 400 or ~1000 | proposed moving group; alternative name: Group X | [10][12][13] | |
Lower Centaurus–Crux association | Centaurus + Crux | 360 | 15 | Subgroup of the Scorpius–Centaurus association | [2] | |
Group 29 | Taurus | 380 | 40 | proposed moving group, overlaps with Taurus-Auriga, but is older | [10][14] | |
Taurus-Auriga association | Taurus + Auriga | 390 | 1.5 | See also: Taurus Molecular Cloud; part of the Radcliffe wave[15] | [2] | |
Group 26 | Cassiopeia | 401 | <1000 | proposed moving group | [10][12] | |
Octans association | Octans | 420 | 35 | [2] | ||
Upper Centaurus–Lupus association | Centaurus + Lupus | 420 | 16 | Subgroup of the Scorpius–Centaurus association | [2] | |
Upper Scorpius association | Scorpius | 420 | 10 | Subgroup of the Scorpius–Centaurus association | [2] | |
ρ Ophiuchi association | ρ Ophiuchi | Ophiuchus | 430 | 2 | See also: Rho Ophiuchi cloud complex | [2] |
Pleiades | Pleiades | Taurus | 444 | 112 | Third closest open cluster. Reported for reference. | [2] |
Corona Australis group | Corona Australis | 450 | 4.5 | [2] | ||
Upper Corona Australis group | Corona Australis | 480 | 10 | [2] | ||
Platais 8 cluster | Carina | 489 | 60 | Open cluster. Reported for reference. | [2][16] | |
μ Tau association | μ Eridani, μ Tauri | Taurus | 489 | 60 | [17] |
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