HD 181433 b
HD 181433 b is an extrasolar planet located approximately 87 light years away[4] in the constellation of Pavo, orbiting the star HD 181433. This planet has mass at least 7.56 times that of Earth. This planet is classified as a super-Earth and orbits at 0.080 AU and varies only about 0.063 AU with an eccentricity of 0.396.[3] François Bouchy et al. have published a paper detailing the HD 181433 planetary system in Astronomy and Astrophysics.[1]
| Discovery | |
|---|---|
| Discovered by | Bouchy et al.[1] |
| Discovery site |  |
| Discovery date | June 16, 2008[2] |
| Doppler spectroscopy[2] | |
| Orbital characteristics | |
| Apastron | 0.111 AU (16,600,000 km) |
| Periastron | 0.048 AU (7,200,000 km) |
| 0.080 AU (12,000,000 km)[3] | |
| Eccentricity | 0.396[3] |
| 9.3743[3] d | |
Average orbital speed | 93 |
| 2454542 ± 0.26[3] | |
| 202 ± 10[3] | |
| Star | HD 181433 |
References
- Bouchy, F.; et al. (2009). "The HARPS search for southern extra-solar planets. XVII. Super-Earth and Neptune-mass planets in multiple planet systems HD 47186 and HD 181433". Astronomy and Astrophysics. 496 (2): 527–531. arXiv:0812.1608. Bibcode:2009A&A...496..527B. doi:10.1051/0004-6361:200810669.
- "A Trio of Super-Earths" (Press release). ESO. 2008-06-16. Archived from the original on 2008-10-07. Retrieved 2008-10-02.
- Schneider, J. "Notes for Planet HD 181433 b". The Extrasolar Planets Encyclopaedia. Retrieved 2008-10-02.
- van Leeuwen, F. (2007). "HIP 95152". Hipparcos, the New Reduction: The Astrometric Catalogue. Retrieved 2008-10-02.
External links
- "HD 181433 b". Exoplanets. Archived from the original on 2012-03-04. Retrieved 2008-11-09.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.