Ruprecht 44

Ruprecht 44
Ruprecht 44
Observation data (J2000 epoch)
Constellation	Puppis
Right ascension	07h 58m 54.0s
Declination	−28° 35′ 00″
Distance	6,600 pc
Physical characteristics
Estimated age	~106 years
Other designations	C 0757-284, KPR2004b 176, KPS2012 MWSC 1398
	See also: Open cluster, List of open clusters

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]

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[]

^ ^a ^b "Ruprecht 44". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 29 December 2020.
^ 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.
^ 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.
^ ^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.

Coordinates: 07^h 58^m 54.0^s, −28° 35′ 00″

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[simbad-1] "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.

[Massey-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.

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