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CoRoT-8b

CoRoT-8b compared to Jupiter and Neptune.
Discovery
Discovered by	Borde et al.
Discovery site	CoRoT space telescope
Discovery date	12 April 2010
Detection method	Transit
Orbital characteristics
Semi-major axis	0.0636 ± 0.0014 AU (9,510,000 ± 210,000 km)
Eccentricity	<0.19
Orbital period (sidereal)	6.212445±0.000007 d
Inclination	88.18°±0.08°
Time of periastron	2,454,239.03317±0.00049 JD
Semi-amplitude	27.6+5.8 −4.7 m/s
Star	CoRoT-8
Physical characteristics
Mean radius	0.619+0.016 −0.017 RJ
Mass	0.218±0.034 MJ
Mean density	1.1±0.2 g/cm
Temperature	870 ± 14 K (1,106.3 ± 25.2 °F; 596.9 ± 14.0 °C)

CoRoT-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.

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

1. 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.
2. ^ 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.
3. ^ 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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Category Commons

v t e Constellation of Aquila
Aquila in Chinese astronomy List of stars in Aquila
Stars	Bayer α (Altair) β (Alshain) γ (Tarazed) δ ε ζ (Okab) η θ (Tseen Foo) ι κ λ μ ν ξ (Libertas) ο π σ τ υ φ χ ψ ω ω A b c d e f g h i k l Flamsteed 4 5 7 8 10 11 18 19 20 21 22 23 24 42 45 46 51 56 57 58 62 64 66 68 69 70 14 Sge 62 Ser 64 Sgr Variable R U V W TT FF QS V368 V450 V500 V603 V604 V605 V606 V923 V1286 V1291 V1298 V1302 V1315 V1333 V1339 V1427 V1428 V1429 V1472 V1487 V1494 V1654 V1672 V1691 V1703 (Phoenicia) V1828 V1936 HR 7099 7143 7288 7300 7307 7396 7456 7569 7598 7599 7693 7717 7803 HD 179079 183263 187734 192699 (Chechia) Other CoRoT-2 CoRoT-3 CoRoT-8 Gaia BH3 HAT-P-41 PSR J1856+0245 PSR J1903+0327 PSR B1913+16 (Hulse–Taylor) PSR J1951+1123 SGR 1900+14 SS 433 W43A W49-2 WASP-80 (Petra) WD J1953−1019 ZTF J1901+1458
Exoplanets CoRoT-2b CoRoT-3b CoRoT-8b CoRoT-10b HD 179079 b HD 183263 b c HD 192263 b HD 192699 b ξ Aquilae b
Star clusters NGC 6709 NGC 6738 NGC 6755 NGC 6756 NGC 6760
Nebulae	NGC 6741 6751 6778 6781 6790 Other Abell 48 Abell 70 E Nebula Hen 2-428 HESS J1857+026 Kesteven 75 Smith's Cloud W43 W49 W49B W50
Galaxies	NGC 6814 Other IC 1327
Category

• Hot Jupiters
• Transiting exoplanets
• Exoplanets discovered in 2010
• Exoplanets discovered by CoRoT
• Aquila (constellation)