| Revision as of 17:19, 15 June 2014 editMike s (talk | contribs)Extended confirmed users21,550 edits update ref← Previous edit | Revision as of 03:38, 2 July 2014 edit undoArtman40 (talk | contribs)2,039 editsm Artman40 moved page XO-2b to XO-2Nb: Two new planets were reported to orbit around the primary star, thus needing more precise designation. http://arxiv.org/pdf/1407.0251v1.pdfNext edit → |
| (No difference) | |
Revision as of 03:38, 2 July 2014
Template:Planetbox begin Template:Planetbox image Template:Planetbox star Template:Planetbox orbit Template:Planetbox character Template:Planetbox discovery Template:Planetbox reference Template:Planetbox end
XO-2b (or rarely XO-2Bb) is an extrasolar planet orbiting the star XO-2 (in fact XO-2B to be precise, since XO-2 is wide binary star) in the constellation Lynx. This planet was found by transit method in 2007 by Burke et al. This was the second such planet found by the XO telescope.
Like most planets found by the transit method, it is a roughly Jupiter sized planet that orbits very close to its host star; in this case, it has a surface temperature of about 1200 K, so it belongs to a group of exoplanets known as hot Jupiters. The planet takes 2.6 days to orbit the star at the average distance of 0.0369 AU. The planet has mass of 57% of Jupiter and radius of 97% of Jupiter. The radius is relatively large for its mass, probably due to its intense heating from its nearby star that bloats the planet’s atmosphere. The large radius for its mass gives a low density of 820 kg/m.
See also
References
- XO-2 b "SIMBAD query result:XO-2b -- Extra-solar Planet Candidate". Centre de Données astronomiques de Strasbourg. Retrieved 2009-04-26.
{{cite web}}: Check|url=value (help) - Burke, Christopher J.; et al. (2007). "XO-2b: Transiting Hot Jupiter in a Metal-rich Common Proper Motion Binary". The Astrophysical Journal. 671 (2): 2115–2128. arXiv:0705.0003. Bibcode:2007ApJ...671.2115B. doi:10.1086/523087.
Cite error: A list-defined reference named "Roman1987" is not used in the content (see the help page).
Cite error: A list-defined reference named "Sing2011" is not used in the content (see the help page).
Cite error: A list-defined reference named "Torres2008" is not used in the content (see the help page).
External links
Media related to XO-2b at Wikimedia Commons