KNOWPIA
WELCOME TO KNOWPIA
HD 76700 b 
Summary
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.
 An artist's impression of HD 76700 b orbiting it's host star. | |
| Discovery[1] | |
|---|---|
| Discovered by | Tinney, Butler, Marcy et al. |
| Discovery site |  Anglo-Australian Telescope |
| Discovery date | July 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 | |
Mean radius | 0.99 RJ |
| Mass | 0.21±0.03 MJ[3] |
| 5.82 m/s2 | |
| Temperature | 1316+85 −252 K |
Discovery edit
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 edit
Due to the planet's high mass, it's 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 4 day orbit around its host due to it being 8 times closer than Mercury is to the Sun.
References edit
- ^ 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.
- ^ a b c 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.
- ^ a b c 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.
External links edit
- "HD 76700". Exoplanets. Archived from the original on 2009-11-25. Retrieved 2008-11-04.
- "HD 76700 b". Exoplanet Kyoto. Retrieved 2021-08-13.