List of nearby stellar associations and moving groups

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Nearby stellar associations and moving groups. The green cross in the middle shows the position of the sun.
Close up on the Orion Arm, with major stellar associations (yellow), nebulae (red) and dark nebulae (grey) around the Local Bubble.
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.

Nearby (≤500 light-years) associations and groups
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[]

  1. ^ 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.
  2. ^ 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.
  3. ^ 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.
  4. ^ 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.
  5. ^ 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.
  6. ^ 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.
  7. ^ 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.
  8. ^ "eta cha cluster". sim-basic. Retrieved 2020-06-12.
  9. ^ 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.
  10. ^ 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.
  11. ^ 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.
  12. ^ 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.
  13. ^ "Cl Platais 8". sim-id. Retrieved 2020-06-12.
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