| Revision as of 20:36, 29 January 2019 editZackmann08 (talk | contribs)Extended confirmed users, Pending changes reviewers, Rollbackers331,075 edits removing unused reference← Previous edit | Revision as of 19:36, 15 September 2019 edit undoFdfexoex (talk | contribs)Extended confirmed users934 edits remove unsourced dataNext edit → | ||
| Line 40: | Line 40: | ||
| | period = 335.1 ± 2.5 ]<br>0.917 ± 0.007 ] | | period = 335.1 ± 2.5 ]<br>0.917 ± 0.007 ] | ||
| | synodic_period = | | synodic_period = | ||
| | avg_speed = |
| avg_speed = | ||
| | mean_anomaly = | | mean_anomaly = | ||
| | mean_motion = | | mean_motion = | ||
| Line 47: | Line 47: | ||
| | asc_node = | | asc_node = | ||
| | long_periastron = | | long_periastron = | ||
| | time_periastron = |
| time_periastron = | ||
| | arg_peri = |
| arg_peri = | ||
| | semi-amplitude = |
| semi-amplitude = | ||
| | satellite_of = | | satellite_of = | ||
| | satellites = | | satellites = | ||
| Line 80: | Line 80: | ||
| | pole_ecliptic_lon = | | pole_ecliptic_lon = | ||
| | albedo = | | albedo = | ||
| | single_temperature = |
| single_temperature = | ||
| | spectral_type = | | spectral_type = | ||
| | magnitude = | | magnitude = | ||
Revision as of 19:36, 15 September 2019
| Discovery | |
|---|---|
| Discovered by | Guenther et al. |
| Discovery site | Karl Schwarzschild Observatory |
| Discovery date | November 27, 2009 |
| Detection method | Radial velocity |
| Orbital characteristics | |
| Semi-major axis | 0.995 ± 0.012 AU (148,800,000 ± 1,800,000 km) |
| Eccentricity | 0.289 ± 0.092 |
| Orbital period (sidereal) | 335.1 ± 2.5 d 0.917 ± 0.007 y |
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.
Overview
The exoplanet 30 Arietis Bb has a minimum mass of nearly 10 times that of Jupiter. 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, but its orbital eccentricity is much higher compared to Earth. At periastron, the planet’s closest distance to the star is 0.708 AU, which is slightly closer to the star than Venus to the Sun. At apastron, the planet’s farthest distance to the star is 1.283 AU, which is more than halfway between the orbits of Earth and Mars.
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.
- "30 Ari B b | New World Atlas - Exoplanet Exploration: Planets Beyond our Solar System". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 2018-07-30.
- Jean Schneider (2011). "Notes for Planet 30 Ari B b". Extrasolar Planets Encyclopaedia. Retrieved 3 October 2011.