Perseus OB1
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| Perseus OB1 | |
|---|---|
 | |
| Observation data (J2000 epoch) | |
| Constellation | Perseus |
| Right ascension | 02h 21m [1][2] |
| Declination | +57.6°[1][2] |
| Mean distance | 6.0 kly (1.83 kpc)[3] |
| Span | 1,000 × 750 light years[4] |
| Radial velocity | −43.4[5] km/s |
| Physical characteristics | |
| Members | 149[6] |
| OB stars | ≥65[7] |
| Other designations | Per OB1[1] |
Perseus OB1 is an OB association in the Northern Celestial Hemisphere in the constellation Perseus. It is centered around the double cluster (NGC 869 and NGC 884),[6] and has lent its name to the Perseus Arm of the Milky Way.[8] The brightest member of the association is the blue supergiant 9 Persei.[4]
References
[edit | edit source]- ^ a b c Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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