Kapteyn's Star
From Free net encyclopedia
Template:Starbox begin Template:Starbox observe Template:Starbox character Template:Starbox astrometry Template:Starbox detail Template:Starbox catalog Template:Starbox end Kapteyn's Star (also known as GJ 191, HD 33793 or CD -45 1841) is a class M0 subdwarf discovered by Jacobus Kapteyn in 1897. It is 12.79 light years from Earth's Solar System, and is distinctive in a number of regards; it has a high radial velocity, orbits the Milky Way retrograde, and is the nearest halo star to the Sun.
When discovered, it had the highest proper motion of any star known, dethroning Groombridge 1830. Later it dropped to second place after the discovery of Barnard's Star.
See also
External links
Discovery announced
- "Stern mit grösster bislang bekannter Eigenbewegung", AN 145 (1898) 159/160 (in German)de:Kapteyns Stern
it:Stella di Kapteyn nl:Ster van Kapteyn pl:Gwiazda Kapteyna sk:Kapteynova hviezda