XO-5
XO-5 is a yellow dwarf main sequence star located approximately 893 light-years away from Earth in the Lynx constellation. It has a magnitude of about 12 and cannot be seen with the naked eye but is visible through a small telescope.
Size comparison of XO-5 b and Jupiter
XO-5 has a suspected red dwarf companion with a temperature 3500
−150 K, on a wide orbit.
Naming
The star XO-5 is named Absolutno. The name was selected in the NameExoWorlds campaign by the Czech Republic, during the 100th anniversary of the IAU. Absolutno is a fictional miraculous substance in the sci-fi novel Továrna na absolutno (The Factory for the Absolute).
Planetary system
The exoplanet XO-5b was discovered by the XO Telescope using the transit method in 2008. This planet is classified as a hot jupiter. A search for transit timing variations caused by additional planets was negative.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b / Makropulos | 1.059 ± 0.028 MJ | 0.0488 ± 0.0006 | 4.1877545 ± 0.0000016 | 0 | — | — |
See also
Notes
- ^ eccentricity is insignificant compared to its uncertainties
References
- ^ Roman, Nancy G. (1987). "Identification of a Constellation From a Position". Publications of the Astronomical Society of the Pacific. 99 (617): 695–699. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Vizier query form
- ^ Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ Burke, Christopher J.; et al. (2008). "XO-5b: A Transiting Jupiter-sized Planet with a 4 day Period". The Astrophysical Journal. 686 (2): 1331–1340. arXiv:0805.2399. Bibcode:2008ApJ...686.1331B. doi:10.1086/591497. S2CID 14043772.
- ^ Zacharias; et al. (2009). "3UC===259-099032". Third U.S. Naval Observatory CCD Astrograph Catalog. Retrieved 2012-02-21.
- ^ Cutri; et al. (2003). "2MASS===07465196+3905404". 2MASS All-Sky Catalog of Point Sources. Retrieved 2012-02-20.
- ^ Pál, A.; et al. (2009). "Independent Confirmation and Refined Parameters of the Hot Jupiter XO-5b". The Astrophysical Journal. 700 (1): 783–790. arXiv:0810.0260. Bibcode:2009ApJ...700..783P. doi:10.1088/0004-637X/700/1/783. S2CID 18318327.
- ^ "GSC 02959-00729". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2009-04-26.
- ^ Piskorz, Danielle; Knutson, Heather A.; Ngo, Henry; Muirhead, Philip S.; Batygin, Konstantin; Crepp, Justin R.; Hinkley, Sasha; Morton, Timothy D. (2015), "Friends of Hot Jupiters. III. An Infrared Spectroscopic Search for Low-Mass Stellar Companions", The Astrophysical Journal, 814 (2): 148, arXiv:1510.08062, Bibcode:2015ApJ...814..148P, doi:10.1088/0004-637X/814/2/148, S2CID 11525988
- ^ "Approved names". NameExoworlds. Retrieved 2020-01-02.
- ^ "International Astronomical Union | IAU". www.iau.org. Retrieved 2020-01-02.
- ^ Maciejewski, G.; et al. (2011). "Refining Parameters of the XO-5 Planetary System with High-Precision Transit Photometry" (PDF). Acta Astronomica. 61 (1): 25–35. arXiv:1103.1325. Bibcode:2011AcA....61...25M.
- ^ Sada, Pedro V.; et al. (2012). "Extrasolar Planet Transits Observed at Kitt Peak National Observatory". Publications of the Astronomical Society of the Pacific. 124 (913): 212–229. arXiv:1202.2799. Bibcode:2012PASP..124..212S. doi:10.1086/665043. S2CID 29665395.
External links
- "XO-5". Exoplanets. Archived from the original on 2016-03-03. Retrieved 2009-04-28.
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