HD 87883 b
| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | HD 87883 | |
| Constellation | Leo Minor | |
| Right ascension | (α) | 10h 08m 43.140s[1] |
| Declination | (δ) | +34° 14′ 32.13″[1] |
| Apparent magnitude | (mV) | 7.56 |
| Distance | 59.4±0.6[1] ly (18.2±0.2[1] pc) | |
| Spectral type | K0V | |
| Orbital elements | ||
| Semi-major axis | (a) | 3.60±0.08 AU |
| Periastron | (q) | 1.69 AU |
| Apastron | (Q) | 5.51 AU |
| Eccentricity | (e) | 0.53±0.12 |
| Orbital period | (P) | 2754±87 d (7.54±0.24 y) |
| Argument of periastron |
(ω) | 191±15° |
| Time of periastron | (T0) | 11139±90 JD |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 1.78±0.34 MJ |
| Discovery information | ||
| Discovery date | August 13, 2009 | |
| Discoverer(s) | ||
| Discovery method | Radial velocity | |
| Discovery status | Published[2] | |
| Database references | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
HD 87883 b is an extrasolar planet which orbits the K-type main sequence star HD 87883, located approximately 59 light years away in the constellation Leo Minor. It is a long-period planet, taking seven and a half years to orbit the star at the average distance of 3.60 AU. However this planet orbits in a very eccentric path, which ranges distance from as close as 1.69 AU to as far as 5.51 AU. This planet was detected by radial velocity method on August 13, 2009.[2]
References
- 1 2 3 4 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.Vizier catalog entry
- 1 2 Fischer, Debra; et al. (2009). "Five planets and an independent confirmation of HD 196885 Ab from Lick Observatory". The Astrophysical Journal 703 (2): 1545–1556. arXiv:0908.1596. Bibcode:2009ApJ...703.1545F. doi:10.1088/0004-637X/703/2/1545.
Coordinates: 
10h 08m 43.1395s, +34° 14′ 32.135″
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
This article is issued from Wikipedia - version of the Friday, April 29, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.