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LAMOST 1 is a star cluster in the constellation Draco. It has been disrupted and consists of a comoving star-stream with about 25,000 stars. The stars are in an elliptical orbit near their apocenter (furthest point) about 8,500 light years distant in the Milky Way. The stars have similar age and metallicity. The stars were discovered in spectra from the Large Sky Area Multi-Object Fibre Spectroscopic Telescope.[2][1]

LAMOST 1
Observation data (J2000 epoch)
ConstellationDraco
Right ascension18h 18m [1]
Declination+52.3°[1]
Distance8500 (2600[1])
Physical characteristics
Mass21000 ± 4000[1] M☉
Estimated age11.0 Gyr[1]
Other designationsLAMOST 1 Stream
See also: Open cluster, List of open clusters

See also



References


  1. Vickers, John J.; Smith, Martin C.; Hou, Yonghui; Wang, Yuefei; Zhang, Yong (2015). "Lamost 1: A Disrupted Satellite in the Constellation Draco". The Astrophysical Journal. 816: L2. arXiv:1512.05090. doi:10.3847/2041-8205/816/1/L2. S2CID 118542097.
  2. Nowakowski, Tomasz (18 December 2015). "Disrupted globular cluster found in the constellation of Draco". Phys.Org. Retrieved 18 December 2015.


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