astro.wikisort.org - MeteoriteCoRoT-8b is a transiting exoplanet orbiting the K-type main sequence star CoRoT-8 1,050 light years away in the equatorial constellation Aquila. The planet was discovered in April 2010 by the CoRoT telescope.
Extrasolar planet in the constellation Aquila
COROT-8b CoRoT-8b compared to Jupiter and Neptune. |
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Discovered by | Borde et al. |
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Discovery site | CoRoT space telescope |
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Discovery date | 12 April 2010 |
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Detection method | Transit |
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Semi-major axis | 0.0636 ± 0.0014 AU (9,510,000 ± 210,000 km)[2] |
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Eccentricity | <0.19[3] |
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Orbital period (sidereal) | 6.212445±0.000007 d[2] |
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Inclination | 88.18°±0.08°[2] |
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Time of periastron | 2,454,239.03317±0.00049 JD[2] |
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Semi-amplitude | 27.6+5.8 −4.7 m/s[3] |
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Star | COROT-8 [ru] |
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Mean radius | 0.619+0.016 −0.017 RJ[2] |
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Mass | 0.218±0.034 MJ[2] |
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Mean density | 1.1±0.2 g/cm3[2] |
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Temperature | 870 ± 14 K (1,106.3 ± 25.2 °F; 596.9 ± 14.0 °C)[2] |
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Discovery
This planet was discovered using the transit method, which detects planet via eclipses. The discovery paper's abstract states that CoRoT-8b is extremely dense compared to Saturn.
Properties
CoRoT-8b has 21.8% Jupiter's mass, and due to its close orbit, a radius 61.9% that of Jupiter. This classifies the planet as a hot Saturn. Despite the bloated radius, the planet is extremely dense, with it being 1.1 times greater than water's;CoRoT-8b has a temperature of 870 K from its 6-day orbit.
References
- 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.
- 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: 824–839. arXiv:1812.01536. Bibcode:2019MNRAS.483..824R. doi:10.1093/mnras/sty3085. ISSN 0035-8711.
- 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.
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Ground-based | | |
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Space missions | Past |
- MOST (2003–2019)
- SWEEPS using HST (2006)
- CoRoT (2006–2013)
- EPOXI using Deep Impact (2008–2013)
- Kepler (2009–2018)
- ASTERIA (2017–2020)
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Current | |
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Planned |
- PLATO (2026)
- ARIEL (2028)
- Nancy Grace Roman Space Telescope (mid-2020s)
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Proposed |
- EXCEDE
- HabEx
- LIFE
- LUVOIR
- Nautilus Deep Space Observatory
- New Worlds Mission
- OST
- PEGASE
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Cancelled | |
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Related | |
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Constellation of Aquila |
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Stars | |
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Nebulae | |
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Galaxies | |
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 Category |
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