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In a two-body problem with inverse-square-law force, every orbit is a Kepler orbit. The eccentricity of this Kepler orbit is a non-negative number that defines its shape. The eccentricity may take the following values: Circular orbit: e = 0; Elliptic orbit: 0 < e < 1; Parabolic trajectory: e = 1; Hyperbolic trajectory: e > 1; The eccentricity e ...
HD 80606 b (also Struve 1341 Bb or HIP 45982 b) is an eccentric hot Jupiter 217 light-years from the Sun in the constellation of Ursa Major.HD 80606 b was discovered orbiting the star HD 80606 in April 2001 by a team led by Michel Mayor and Didier Queloz. [2]
(87269) 2000 OO 67 (provisional designation 2000 OO 67) is a trans-Neptunian object, approximately 64 kilometers (40 miles) in diameter, on a highly eccentric orbit in the outermost region of the Solar System. It was discovered by astronomers at the Chilean Cerro Tololo Inter-American Observatory on 29 July 2000. Celestia distant object orbits
HD 80606 b was considered the planet with the most eccentric orbit until the recent discovery. HD 80606 b has an eccentricity of 0.93 and a shorter orbit of 111 days, and it orbits in the same ...
The eccentricity of an orbit is a measure of how elliptical (elongated) it is. All the planets of the Solar System except for Mercury have near-circular orbits (e<0.1). [ 8 ] Most exoplanets with orbital periods of 20 days or less have near-circular orbits, i.e. very low eccentricity.
The companion of ASASSN-21js has an orbit of 13 000 AU, but it is unknown if it is a brown dwarf or a planet due to its unknown mass. [65] Smallest orbital separation SDSS J1730+5545 b: SDSS J1730+5545: 0.00139 AU [62] Most eccentric orbit: SGR 1935+2154 b: SGR 1935+2154: 0.992 or 0.994 [4] Highest orbital inclination: HD 204313 e: HD 204313: ...
With an eccentricity of 0.003 in 2016, [b] Praamzius had one of the lowest eccentricities of any trans-Neptunian object, and a more circular orbit than any major planet (including Venus, the least eccentric planet at 0.007). But the object's eccentricity varies over time due to the position of the planets (also see table). A 10 million year ...
First calculation of WASP-14b's Rossiter–McLaughlin effect and so spin-orbit angle was −14 ± 17 degrees. [3] It is too eccentric for its age and so is possibly pulled into its orbit by another planet. [1] The study in 2012 has updated spin-orbit angle to 33.1 ± 7.4°. [4]