HD 12039
Encyclopedia : H : HD : HD1 : HD 12039
|- style="vertical-align: top;" | B-V color index | |- style="vertical-align: top;" | U-B color index | |- style="vertical-align: top;" | Variable type |
|- ! style="background-color: #FFFFC0;" colspan="2" | Details |- |style="vertical-align: baseline;" | Mass | M☉ |- |style="vertical-align: baseline;" | Radius | R☉ |- |style="vertical-align: baseline;" | Luminosity | L☉ |- |style="vertical-align: baseline;" | Temperature | K |- |style="vertical-align: baseline;" | Metallicity | |- |style="vertical-align: baseline;" | Rotation | |- |style="vertical-align: baseline;" | Age | })<()or(}})=()and(}})<())}}} years
|- ! style="background-color: #FFFFC0;" colspan="2" | Other designations |- | colspan="2" |
|} HD 12039 is a variable star in the constellation of Cetus. It is categorized as a BY Draconis variable, and has a stellar classification that is similar to our own Sun.Recently a debris field was discovered in orbit around this star using infrared observations by the Spitzer telescope. This debris is thought to be an asteroid belt. The measured temperature of the debris is 110°K, which places it in an orbit between 4 and 6 AU from the star, or about the same distance where Jupiter orbits our Sun.
References
- Hines, D. C. et al, "[Discovery of an Unusual Debris System Associated with HD 12039]", The Astrophysical Journal, October, 2005.
From Wikipedia, the Free Encyclopedia. Original article here. Support Wikipedia by contributing or donating.
All text is available under the terms of the GNU Free Documentation License See Wikipedia Copyrights for details.