HD 181433 c
HD 181433 c 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 0.64 times that of Jupiter and takes 962 days to orbit the star at an orbital distance of 1.76 AU or 263 Gm. However, the orbit is eccentric, which ranges from 1.27 AU (190 Gm) at periastron to 2.25 AU (337 Gm) at apastron.[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 | 2.25 AU (337,000,000 km) |
| Periastron | 1.27 AU (190,000,000 km) |
| 1.76 AU (263,000,000 km)[3] | |
| Eccentricity | 0.28 ± 0.02[3] |
| 962 ± 15[3] d 2.63 y | |
Average orbital speed | 20.0 |
| 2453235 ± 7.3[3] | |
| 21.4 ± 3.2[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 c". 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 c". Exoplanets. Archived from the original on 2012-03-04. Retrieved 2008-11-09.
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