Ruprecht 44 is an open cluster in the Milky Way galaxy. It is about 6,600 pc away in the constellation Puppis.[2] Ruprecht 44 is a very young open cluster, only about several million years old.[3]

Ruprecht 44
Observation data (J2000 epoch)
Right ascension07h 58m 54.0s[1]
Declination−28° 35′ 00″[1]
Distance6,600 pc
Physical characteristics
Estimated age~106 years
Other designationsC 0757-284, KPR2004b 176, KPS2012 MWSC 1398
Associations
ConstellationPuppis
See also: Open cluster, List of open clusters
Prominent stars
Star name LSS number Effective temperature Absolute magnitude Bolometric magnitude Mass (M) Spectral type Ref.
WR 10 (HD 65865) LSS 916 63000 -4.2 -8.5 25 WN4.5 [4]
LSS 891 37200 -4.4 -8 27 O8III(f) [4]
LSS 898 35100 -4.3 -7.7 24 Be [4]
LSS 902 31600 -4.7 -7.9 23 B0V [4]
LSS 920 34700 -3.7 -7.1 21 O9.5V [4]
LSS 907 31600 -4.3 -7.4 20 B0V [4]

References

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  1. ^ a b "Ruprecht 44". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 29 December 2020.
  2. ^ Moffat, A. F. J.; Fitzgerald, M. P. (1974). "Distant galactic structure in PUP : the Ruprecht 44 aggregate". Astronomy and Astrophysics. 34: 291–296. Bibcode:1974A&A....34..291M.
  3. ^ Giorgi, E. E.; Solivella, G. R.; Perren, G.; Vázquez, R. A.; Carraro, G. (2018). "Photometric and spectroscopic study in the region of Ruprecht 44 and the Galaxy structure". Boletín de la Asociación Argentina de Astronomía. 60: 167–169. Bibcode:2018BAAA...60..167G.
  4. ^ a b c d e f Massey, P.; Degioia-Eastwood, K.; Waterhouse, E. (2001). "The Progenitor Masses of Wolf-Rayet Stars and Luminous Blue Variables Determined from Cluster Turnoffs. II. Results from 12 Galactic Clusters and OB Associations". The Astronomical Journal. 121 (2): 1050–1070. arXiv:astro-ph/0010654. Bibcode:2001AJ....121.1050M. doi:10.1086/318769. S2CID 53345173.