30 Arietis Bb
30 Arietis Bb (sometimes abbreviated 30 Ari Bb) is an extrasolar planet which orbits the F-type main sequence star 30 Arietis B, located in a quadruple star system approximately 146 light years away in the constellation Aries. The gas giant planet was discovered by on Friday, November 27, 2009 by using precise radial velocity method from echelle spectrograph installed in Alfred-Jensch telescope in Karl Schwarzschild Observatory.[1]
| Discovery | |
|---|---|
| Discovered by | Guenther et al. |
| Discovery site | Karl Schwarzschild Observatory |
| Discovery date | November 27, 2009 |
| Radial velocity | |
| Orbital characteristics | |
| 0.995 ± 0.012 AU (148,800,000 ± 1,800,000 km) | |
| Eccentricity | 0.289 ± 0.092 |
| 335.1 ± 2.5 d 0.917 ± 0.007 y | |
Overview
The exoplanet 30 Arietis Bb has a minimum mass of nearly 10 times that of Jupiter.[2] Because inclination is not identified, its true mass is unknown. Meanwhile, this planet orbits only 0.995 AU (or 700,000 km) closer to the star than Earth to the Sun.
References
- Guenther, E. W.; et al. (2009). "A substellar component orbiting the F-star 30 Arietis B". Astronomy and Astrophysics. 507 (3): 1659–1665. arXiv:0912.4619. Bibcode:2009A&A...507.1659G. doi:10.1051/0004-6361/200912112.
- Jean Schneider (2011). "Notes for Planet 30 Ari B b". Extrasolar Planets Encyclopaedia. Retrieved 3 October 2011.
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