Markarian 50 | |
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Observation data (J2000 epoch) | |
Constellation | Cassiopeia |
Right ascension | 23h 15m 15.1s [1] |
Declination | +60° 26′ 02″ [1] |
Distance | 3,460 pc |
Physical characteristics | |
Estimated age | 7.5 million years |
Other designations | Cl Basel 3, Cl Mrk 50, OCISM 56, MWSC 3712, C 2313+602, Cl Biurakan 3, OCl 257 |
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]
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 |
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