List of nearby stellar associations and moving groups
![]() | This list is incomplete; you can help by . (February 2020) |
![](http://upload.wikimedia.org/wikipedia/commons/thumb/4/4c/All%28label%29.jpg/300px-All%28label%29.jpg)
Nearby stellar associations and moving groups. The green cross in the middle shows the position of the sun.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/8/87/LocalSpur.png/350px-LocalSpur.png)
Close up on the Orion Arm, with major stellar associations (yellow), nebulae (red) and dark nebulae (grey) around the Local Bubble.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/8/82/Sky_Map_7_-_Paper_29.png/350px-Sky_Map_7_-_Paper_29.png)
Main associations of the galactic plane in the night sky
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 is sorted by the distance to the solar system.
Name | Associated star or cluster | Constellation | Average distance (light-years) | Age (million years) | Note | Reference |
---|---|---|---|---|---|---|
Castor Moving Group | Castor, DX Cancri, Vega, Fomalhaut, etc. | <80 | Disputed existence. | |||
Ursa Major association | Alioth, Mizar, Merak, etc. | Ursa Major | 80 | 414 | Closest moving group. | [1] |
AB Doradus moving Group | AB Doradus | Dorado | 100 | 150 | [1] | |
β Pictoris moving Group | β Pictoris | Pictor | 100 | 24 | [1] | |
Carina | 100 | 200 | [1] | |||
Hercules-Lyra association | Hercules + Lyra | 100 | 260 | might be a stellar stream[2] | [3] | |
Tucana-Horologium association | Tucana + Horologium | 150 | 45 | Formerly part of the GAYA () | [1][4] | |
Hyades | Hyades | Taurus | 153 | 750 | Closest open cluster. Reported for reference. | [1] |
Columba association | Columba | 160 | 42 | Formerly part of the GAYA () | [1][4] | |
TW Hydrae association | TW Hydrae | Hydra | 160 | 10 | [1] | |
Carina | 200 | 45 | Formerly part of the GAYA () | [1][4] | ||
Coma Star Cluster | Coma Star Cluster | Coma Berenices | 280 | 562 | Second closest open cluster. Reported for reference. | [5][1] |
Volans + Carina | 280 | 90 | formerly Group 30 | [6][7] | ||
32 Orionis | Orion | 310 | 22 | [1] | ||
η Chamaeleontis moving group | η Chamaeleontis | Chamaeleon | 310 | 11 | [1][8] | |
Fornax | 320 | 500 | other name: cluster Alessi 13 | [1] | ||
Taurus | 330 | 10 | [1] | |||
ε Chamaeleontis | Chamaeleon | 330 | 3.7 | [1] | ||
Ursa Major | 330 | 400 or ~1000 | proposed moving group; alternative name: Group X | [7][9][10] | ||
Centaurus + Crux | 360 | 15 | Subgroup of the Scorpius-Centaurus association | [1] | ||
Taurus | 380 | 40 | proposed moving group, overlaps with Taurus-Auriga, but is older | [7][11] | ||
Taurus + Auriga | 390 | 1.5 | See also: Taurus Molecular Cloud; part of the Radcliffe wave[12] | [1] | ||
Cassiopeia | 401 | <1000 | proposed moving group | [7][9] | ||
Octans | 420 | 35 | [1] | |||
Centaurus + Lupus | 420 | 16 | Subgroup of the Scorpius-Centaurus association | [1] | ||
Upper Scorpius association | Scorpius | 420 | 10 | Subgroup of the Scorpius-Centaurus association | [1] | |
ρ Ophiuchi | Ophiuchus | 430 | 2 | See also: Rho Ophiuchi cloud complex | [1] | |
Pleiades | Pleiades | Taurus | 444 | 112 | Third closest open cluster. Reported for reference. | [1] |
Corona Australis | 450 | 4.5 | [1] | |||
Corona Australis | 480 | 10 | [1] | |||
Platais 8 cluster | Carina | 489 | 60 | Open cluster. Reported for reference. | [1][13] |
See also[]
References[]
- ^ a b c d e f g h i j k l m n o p q r s t u v w x y Gagné, Jonathan; Mamajek, Eric E.; Malo, Lison; Riedel, Adric; Rodriguez, David; Lafrenière, David; Faherty, Jacqueline K.; Roy-Loubier, Olivier; Pueyo, Laurent; Robin, Annie C.; Doyon, René (March 2018). "BANYAN. XI. The BANYAN Σ Multivariate Bayesian Algorithm to Identify Members of Young Associations with 150 pc". Astrophysical Journal. 856 (1): 23. arXiv:1801.09051. Bibcode:2018ApJ...856...23G. doi:10.3847/1538-4357/aaae09. ISSN 0004-637X.
- ^ Mamajek, Eric E. (January 2016). "A Pre-Gaia Census of Nearby Stellar Groups". IAUS. 314: 21–26. arXiv:1507.06697. Bibcode:2016IAUS..314...21M. doi:10.1017/S1743921315006250. ISSN 1743-9221.
- ^ Eisenbeiss, T.; Ammler-von Eiff, M.; Roell, T.; Mugrauer, M.; Adam, Ch; Neuhäuser, R.; Schmidt, T. O. B.; Bedalov, A. (August 2013). "The Hercules-Lyra association revisited. New age estimation and multiplicity study". A&A. 556: A53. arXiv:1312.4045. Bibcode:2013A&A...556A..53E. doi:10.1051/0004-6361/201118362. ISSN 0004-6361.
- ^ a b c Torres, C. a. O.; Quast, G. R.; Melo, C. H. F.; Sterzik, M. F. (December 2008). "Young Nearby Loose Associations". Hsf2. 5: 757. Bibcode:2008hsf2.book..757T.
- ^ Silaj, J.; Landstreet, J. D. (June 2014). "Accurate age determinations of several nearby open clusters containing magnetic Ap stars". A&A. 566: A132. arXiv:1407.4531. Bibcode:2014A&A...566A.132S. doi:10.1051/0004-6361/201321468. ISSN 0004-6361.
- ^ Gagné, Jonathan; Faherty, Jacqueline K.; Mamajek, Eric E. (October 2018). "Volans-Carina: A New 90 Myr Old Stellar Association at 85 pc". Astrophysical Journal. 865 (2): 136. arXiv:1808.04420. Bibcode:2018ApJ...865..136G. doi:10.3847/1538-4357/aadaed. ISSN 0004-637X.
- ^ a b c d Oh, Semyeong; Price-Whelan, Adrian M.; Hogg, David W.; Morton, Timothy D.; Spergel, David N. (June 2017). "Comoving Stars in Gaia DR1: An Abundance of Very Wide Separation Comoving Pairs". The Astronomical Journal. 153 (6): 257. arXiv:1612.02440. Bibcode:2017AJ....153..257O. doi:10.3847/1538-3881/aa6ffd. ISSN 0004-6256.
- ^ "eta cha cluster". sim-basic. Retrieved 2020-06-12.
- ^ a b Faherty, Jacqueline K.; Bochanski, John J.; Gagné, Jonathan; Nelson, Olivia; Coker, Kristina; Smithka, Iliya; Desir, Deion; Vasquez, Chelsea (August 2018). "New and Known Moving Groups and Clusters Identified in a Gaia Comoving Catalog". Astrophysical Journal. 863 (1): 91. arXiv:1804.09058. Bibcode:2018ApJ...863...91F. doi:10.3847/1538-4357/aac76e. ISSN 0004-637X.
- ^ Tang, Shih-Yun; Pang, Xiaoying; Yuan, Zhen; Chen, W. P.; Hong, Jongsuk; Goldman, Bertrand; Just, Andreas; Shukirgaliyev, Bekdaulet; Lin, Chien-Cheng (May 2019). "Discovery of Tidal Tails in Disrupting Open Clusters: Coma Berenices and a Neighbor Stellar Group". Astrophysical Journal. 877 (1): 12. arXiv:1902.01404. Bibcode:2019ApJ...877...12T. doi:10.3847/1538-4357/ab13b0. ISSN 0004-637X.
- ^ Luhman, K. L. (December 2018). "The Stellar Membership of the Taurus Star-forming Region". The Astronomical Journal. 156 (6): 271. arXiv:1811.01359. Bibcode:2018AJ....156..271L. doi:10.3847/1538-3881/aae831. ISSN 0004-6256.
- ^ Alves, João; Zucker, Catherine; Goodman, Alyssa A.; Speagle, Joshua S.; Meingast, Stefan; Robitaille, Thomas; Finkbeiner, Douglas P.; Schlafly, Edward F.; Green, Gregory M. (January 2020). "A Galactic-scale gas wave in the Solar Neighborhood". Nature. 578 (7794): 237–239. arXiv:2001.08748. Bibcode:2020Natur.578..237A. doi:10.1038/s41586-019-1874-z. PMID 31910431.
- ^ "Cl Platais 8". sim-id. Retrieved 2020-06-12.
Categories:
- Stellar associations
- Lists of clusters