HD 76700 b

Last updated
HD 76700 b
HD 76700.png
An artist's impression of HD 76700 b orbiting its host star.
Discovery [1]
Discovered by Tinney, Butler,
Marcy et al.
Discovery site Flag of Australia (converted).svg Anglo-Australian Telescope
Discovery dateJuly 5, 2002
Radial velocity
Orbital characteristics
0.0511 ± 0.0030 AU (7,640,000 ± 450,000 km) [2]
Eccentricity 0.10±0.08 [3]
3.97097±0.00023  d [3]
2451213.32±0.67  JD [2]
30° [2]
Semi-amplitude 27.6±1.7
Star HD 76700
Physical characteristics
0.99  RJ
Mass 0.21±0.03  MJ [3]
5.82  m/s2
Temperature 1316+85
−252  K

    HD 76700 b is an exoplanet orbiting the G-type main sequence star HD 76700, approximately 198 light years away in the southern constellation Volans. The planet was discovered in 2002, and was announced in 2003.

    Contents

    Discovery

    In 2002, a group of scientists detected planets around multiple stars, along with HD 76700. Unlike the other planets, HD 76700 b has a short and circular orbit; however, according to the newest data, the planet's orbit may be slightly eccentric.

    Properties

    Due to the planet's high mass, it is a gas giant similar to Saturn. HD 76700 b was detected indirectly, so properties such as its radius, inclination, and temperature is unknown. HD 76700 b has a short four day orbit around its host due to it being eight times closer than Mercury is to the Sun.

    References

    1. ↑ Tinney, C. G.; et al. (2003). "Four New Planets Orbiting Metal-enriched Stars". The Astrophysical Journal. 587 (1): 423–428. arXiv: astro-ph/0207128 . Bibcode:2003ApJ...587..423T. doi:10.1086/368068. S2CID   10163020.
    2. 1 2 3 Butler, R. P.; et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. arXiv: astro-ph/0607493 . Bibcode:2006ApJ...646..505B. doi:10.1086/504701. S2CID   119067572.
    3. 1 2 3 Stassun, Keivan G.; Collins, Karen A.; Gaudi, B. Scott (1 March 2017). "Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes". The Astronomical Journal. 153 (3): 136. arXiv: 1609.04389 . Bibcode:2017AJ....153..136S. doi: 10.3847/1538-3881/aa5df3 . ISSN   0004-6256. S2CID   119219062.
    This page is based on this Wikipedia article
    Text is available under the CC BY-SA 4.0 license; additional terms may apply.
    Images, videos and audio are available under their respective licenses.