10 Lacertae: Difference between revisions
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'''10 Lacertae''' ('''10 Lac''') is a [[star]] in the [[constellation]] [[Lacerta (constellation)|Lacerta]]. Its [[apparent magnitude]] is 4.88. Located around {{convert|529|pc|ly}} distant, it is a hot [[O-type main-sequence star|blue main-sequence star]] of spectral type O9V,<ref name=SIMBAD>{{cite web |url =http://simbad.u-strasbg.fr/simbad/sim-id?Ident=10+lac&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id |title = 10 Lacertae|work = SIMBAD Astronomical Database|publisher=Centre de Données astronomiques de Strasbourg |accessdate = 6 January 2014}}</ref> 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 [[Stellar classification#Yerkes spectral classification|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.<ref name="Garrison">{{cite journal |last1=Garrison |first1=R. F. |title=A Hierarchy of Standards for the MK Process |journal=[[Astronomical Society of the Pacific]] |year=1994 |bibcode=1994ASPC...60....3G |url=http://adsabs.harvard.edu/abs/1994ASPC...60....3G}}</ref> |
'''10 Lacertae''' ('''10 Lac''') is a [[star]] in the [[constellation]] [[Lacerta (constellation)|Lacerta]]. Its [[apparent magnitude]] is 4.88. Located around {{convert|529|pc|ly}} distant, it is a hot [[O-type main-sequence star|blue main-sequence star]] of spectral type O9V,<ref name=SIMBAD>{{cite web |url =http://simbad.u-strasbg.fr/simbad/sim-id?Ident=10+lac&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id |title = 10 Lacertae|work = SIMBAD Astronomical Database|publisher=Centre de Données astronomiques de Strasbourg |accessdate = 6 January 2014}}</ref> 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 [[Stellar classification#Yerkes spectral classification|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.<ref name="Garrison">{{cite journal |last1=Garrison |first1=R. F. |title=A Hierarchy of Standards for the MK Process |journal=[[Astronomical Society of the Pacific]] |year=1994 |bibcode=1994ASPC...60....3G |url=http://adsabs.harvard.edu/abs/1994ASPC...60....3G}}</ref> |
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Revision as of 01:25, 30 September 2015
 10 Lacertae in Celestia | |
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Lacerta |
| Right ascension | 22h 39m 15.67864s [1] |
| Declination | +39° 03′ 00.9712″ [1] |
| Spectral type | O9V [1] |
{{Starbox detail |mass = ? |radius = ? |luminosity = ? |temperature = ~30,000 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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