HD 169830
Script error: No such module "Check for unknown parameters".
HD 169830 is a star in the southern constellation of Sagittarius. It has a yellow-white hue and is dimly visible to the naked eye with an apparent visual magnitude of +5.90.[2] The star is located at a distance of 120 light-years from the Sun based on parallax. It is drifting closer with a radial velocity of −17.3 km/s,[4] and is predicted to come as close as Script error: No such module "convert". in 2.08 million years.[10] HD 169830 is known to be orbited by two large Jupiter-like exoplanets.
This is an F-type main-sequence star[6] with a stellar classification of F7V.[3] It is 3.83[8] billion years old and chromospherically inactive[8] with a slow rotation rate,[8] having a projected rotational velocity of 3.83 km/s.[5] This star is 40% more massive and 84% larger than the Sun. Combining the mass and radius makes the surface gravity only 41% that of the Sun. It is radiating 4.6[6] times the luminosity of the Sun from its photosphere at an effective temperature of 6,300 K.[6]
A candidate stellar companion, designated component B, lies at an angular separation of Script error: No such module "val". along a position angle of 265°.[11]
Planetary system
On April 15, 2000, the Geneva Extrasolar Planet Search Team announced the discovery of a minimum mass Template:Jupiter mass planet in a 226-day orbit.[12][6] Three years later on June 30, 2003, the same team, using the same method, discovered a minimum mass Template:Jupiter mass second planet orbiting the star.[7] In 2022, the inclination and true mass of HD 169830 c were measured via astrometry.[13]
Template:OrbitboxPlanet begin Template:OrbitboxPlanet Template:OrbitboxPlanet
|}Script error: No such module "Check for unknown parameters".
See also
References
<templatestyles src="Reflist/styles.css" />
- ↑ a b c d e Template:Cite Gaia DR3
- ↑ a b c d Script error: No such module "Citation/CS1".
- ↑ a b Script error: No such module "Citation/CS1".
- ↑ a b Script error: No such module "Citation/CS1".
- ↑ a b Script error: No such module "Citation/CS1".
- ↑ a b c d e f Script error: No such module "Citation/CS1".
- ↑ a b Script error: No such module "Citation/CS1".
- ↑ a b c d Script error: No such module "Citation/CS1".
- ↑ Template:Cite simbad
- ↑ Script error: No such module "Citation/CS1".
- ↑ Script error: No such module "Citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "Citation/CS1".
Script error: No such module "Check for unknown parameters".
External links
- Script error: No such module "citation/CS1".
- Extrasolar Planet Interactions Template:Webarchive by Rory Barnes & Richard Greenberg, Lunar and Planetary Lab, University of Arizona