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Markarian 50

Markarian 50 is an open cluster in the Milky Way galaxy. It is about 3,460 pc away in the constellation Cassiopeia.[2] Markarian 50 is a very young open cluster, only about 7.5 million years old. Markarian 50 may be a member of the OB association Cassiopeia OB2.[2] The Wolf-Rayet star WR 157 is a member of Markarian 50.[3]

Markarian 50
Observation data (J2000 epoch)
Right ascension23h 15m 15.1s[1]
Declination+60° 26′ 02″[1]
Distance3,460 pc
Physical characteristics
Estimated age7.5 million years
Other designationsCl Basel 3, Cl Mrk 50, OCISM 56, MWSC 3712, C 2313+602, Cl Biurakan 3, OCl 257
Associations
ConstellationCassiopeia
See also: Open cluster, List of open clusters
Prominent stars[4]
Star name Effective temperature Absolute magnitude Bolometric magnitude Mass (M) Spectral type
HD 219460 A 30200 -4.7 -7.7 21 B0III
WR 157 (Companion to HD 219460 A) 65000 20 WN4.5
Mrk50-31 28200 -4.6 -7.4 19 B0.5I
Mrk50-23 23600 -4.5 -6.7 14 B1III
Mrk50-30A 22400 -3.6 -5.7 11 B1.5V
Mrk50-1 22400 -2.8 -4.8 9 B1.5V

References edit

  1. ^ a b "Cl Mrk 50". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 29 December 2020.
  2. ^ a b Baume, Gustavo; Vázquez, Rubén A.; Carraro, Giovanni (December 2004). "The young open cluster Markarian 50". Monthly Notices of the Royal Astronomical Society. 355 (2): 475–484. Bibcode:2004MNRAS.355..475B. doi:10.1111/j.1365-2966.2004.08337.x. hdl:11336/38930. ISSN 0035-8711. S2CID 122774454.
  3. ^ Turner, D. G.; Moffat, A. F. J.; Lamontagne, R.; Maitzen, H. M. (August 1983). "The WN4.5 component of HD 219460 in the open cluster Markarian 50". The Astronomical Journal. 88: 1199–1209. Bibcode:1983AJ.....88.1199T. doi:10.1086/113410. ISSN 0004-6256. S2CID 120580751.
  4. ^ 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.


markarian, open, cluster, milky, galaxy, about, away, constellation, cassiopeia, very, young, open, cluster, only, about, million, years, member, association, cassiopeia, wolf, rayet, star, member, observation, data, j2000, epoch, right, ascension23h, declinat. Markarian 50 is an open cluster in the Milky Way galaxy It is about 3 460 pc away in the constellation Cassiopeia 2 Markarian 50 is a very young open cluster only about 7 5 million years old Markarian 50 may be a member of the OB association Cassiopeia OB2 2 The Wolf Rayet star WR 157 is a member of Markarian 50 3 Markarian 50Observation data J2000 epoch Right ascension23h 15m 15 1s 1 Declination 60 26 02 1 Distance3 460 pcPhysical characteristicsEstimated age7 5 million yearsOther designationsCl Basel 3 Cl Mrk 50 OCISM 56 MWSC 3712 C 2313 602 Cl Biurakan 3 OCl 257AssociationsConstellationCassiopeiaSee also Open cluster List of open clusters Prominent stars 4 Star name Effective temperature Absolute magnitude Bolometric magnitude Mass M Spectral typeHD 219460 A 30200 4 7 7 7 21 B0IIIWR 157 Companion to HD 219460 A 65000 20 WN4 5Mrk50 31 28200 4 6 7 4 19 B0 5IMrk50 23 23600 4 5 6 7 14 B1IIIMrk50 30A 22400 3 6 5 7 11 B1 5VMrk50 1 22400 2 8 4 8 9 B1 5VReferences edit a b Cl Mrk 50 SIMBAD Centre de donnees astronomiques de Strasbourg Retrieved 29 December 2020 a b Baume Gustavo Vazquez Ruben A Carraro Giovanni December 2004 The young open cluster Markarian 50 Monthly Notices of the Royal Astronomical Society 355 2 475 484 Bibcode 2004MNRAS 355 475B doi 10 1111 j 1365 2966 2004 08337 x hdl 11336 38930 ISSN 0035 8711 S2CID 122774454 Turner D G Moffat A F J Lamontagne R Maitzen H M August 1983 The WN4 5 component of HD 219460 in the open cluster Markarian 50 The Astronomical Journal 88 1199 1209 Bibcode 1983AJ 88 1199T doi 10 1086 113410 ISSN 0004 6256 S2CID 120580751 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 nbsp This star cluster related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Markarian 50 amp oldid 1195778441, wikipedia, wiki, book, books, library,

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