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CoRoT-8

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Star in Aquila
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CoRoT-8
Observation data
EpochJ2000.0      EquinoxJ2000.0
ConstellationAquila
Right ascension19h 26m 21.26s[citation needed]
Declination+01° 25′ 34.67″[citation needed]
Characteristics
Evolutionary stagemain sequence star
Spectral typeK3V[citation needed]
Variable typeplanetary transit
Astrometry
Proper motion (μ)RA: 13.5768 ± 0.0475751[citation needed]mas/yr
Dec.: -32.7832 ± 0.0418883[citation needed]mas/yr
Parallax (π)3.07662 ± 0.0259729[citation needed] mas
Details
Mass0.88 M
Radius0.77 R
Temperature5143[citation needed] K
Metallicity [Fe/H]-0.22 ± 0.11 Fe[citation needed] dex
Age1.7[citation needed] Gyr
Database references
SIMBADdata

CoRoT-8 is a star in theconstellation Aquila at a distance of about 1239 light-years from us. At least one planet revolves around the star.

CoRoT-8 is an orange dwarf which has 0.88 solar masses and 0.77 solar radius.[1] By astronomical standards, this is already a rather young star compared to the Sun: its age is about 3 billion years. It got its name in honor of theCoRoT space telescope, with the help of which its planetary companion was discovered.

In 2010, a group of astronomers working within theCoRoT program announced the discovery of the planetCoRoT-8b in this system. It is a hot gas giant, similar in mass and size toSaturn. The planet orbits at a distance of about 0.06 AU. e. from the parent star, while making a complete revolution in 6.21 days.[2][3][4]

The CoRoT-8 planetary system
Companion
(in order from star)
MassSemimajor axis
(AU)
Orbital period
(days)
EccentricityInclinationRadius
b0.218 ± 0.034 MJ0.0636 ± 0.00146.212445 ± 0.0000070.19

References

[edit]
  1. ^P. Bordé, F. Bouchy, M. Deleuil, J. Cabrera, L. Jorda, C. Lovis, S. Csizmadia, S. Aigrain, J. M. Almenara, R. Alonso, M. Auvergne, A. Baglin, P. Barge, W. Benz, A. S. Bonomo, H. Bruntt, L. Carone, S. Carpano, H. Deeg, R. Dvorak, A. Erikson, S. Ferraz-Mello, M. Fridlund, D. Gandolfi, J.-C. Gazzano, M. Gillon, E. Guenther, T. Guillot, P. Guterman, A. Hatzes, M. Havel, G. Hébrard, H. Lammer, A. Léger, M. Mayor, T. Mazeh, C. Moutou, M. Pätzold, F. Pepe, M. Ollivier, D. Queloz, H. Rauer, D. Rouan, B. Samuel, A. Santerne, J.Schneider, B. Tingley, S. Udry, J. Weingrill, G. Wuchterl (2010-08-02). "Transiting exoplanets from the CoRoT space mission".Astronomy and Astrophysics.520: A66.arXiv:1008.0325.Bibcode:2010A&A...520A..66B.doi:10.1051/0004-6361/201014775.S2CID 56357511.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  2. ^Bordé, P.; et al. (September 2010). "Transiting exoplanets from the CoRoT space mission. XI. CoRoT-8b: a hot and dense sub-Saturn around a K1 dwarf".Astronomy and Astrophysics.520: A66.arXiv:1008.0325.Bibcode:2010A&A...520A..66B.doi:10.1051/0004-6361/201014775.ISSN 0004-6361.S2CID 56357511.
  3. ^Raetz, St; Heras, A. M.; Fernández, M.; Casanova, V.; Marka, C. (February 2019)."Transit analysis of the CoRoT-5, CoRoT-8, CoRoT-12, CoRoT-18, CoRoT-20, and CoRoT-27 systems with combined ground- and space-based photometry".Monthly Notices of the Royal Astronomical Society.483 (1):824–839.arXiv:1812.01536.Bibcode:2019MNRAS.483..824R.doi:10.1093/mnras/sty3085.ISSN 0035-8711.
  4. ^Bonomo, A. S.; et al. (June 2017). "The GAPS Programme with HARPS-N at TNG . XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets".Astronomy and Astrophysics.602: A107.arXiv:1704.00373.Bibcode:2017A&A...602A.107B.doi:10.1051/0004-6361/201629882.ISSN 0004-6361.S2CID 118923163.
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