10 Lacertae
{{starbox short |constell= Lacerta |name= 10 Lacertae
10 Lacertae in Celestia
|type= O9V [1] |ra= 22h 39m 15.67864s [1] |dec= +39° 03′ 00.9712″ [1]
DetailsMass? M☉Radius? R☉Luminosity? L☉Temperature~30,000 K
10 Lacertae (10 Lac) is a star in the constellation Lacerta. Its apparent magnitude is 4.88. Located around 529 parsecs (1,730 ly) distant, it is a hot blue main-sequence star of spectral type O9V,[1] a massive star that is currently fusing its core hydrogen. 10 Lacertae was one of the first O-type stars (along with S Monocerotis) to be defined as an anchor point for the MKK spectral classification; since the early twentieth century it has served as such a point. Specifically, the star is representative of O9V stars, meaning relatively cool O-type stars on the main-sequence.[2]
References
- ^ a b c d "10 Lacertae". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 6 January 2014.
- ^ Garrison, R. F. (1994). "A Hierarchy of Standards for the MK Process". Astronomical Society of the Pacific. Bibcode:1994ASPC...60....3G.
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