HD 30562 b
| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | HD 30562 | |
| Constellation | Eridanus | |
| Right ascension | (α) | 04h 48m 36.38s[1] |
| Declination | (δ) | –05° 40′ 26.6″[1] |
| Apparent magnitude | (mV) | 5.77 |
| Distance | 86.2 ± 0.8[1] ly (26.4 ± 0.2[1] pc) | |
| Spectral type | F8V | |
| Orbital elements | ||
| Semi-major axis | (a) | 2.30 ± 0.02 AU |
| Periastron | (q) | 0.55 AU |
| Apastron | (Q) | 4.05 AU |
| Eccentricity | (e) | 0.76 ± 0.05 |
| Orbital period | (P) | 1157 ± 27 d (3.17 ± 0.07 y) |
| Argument of periastron |
(ω) | 81 ± 10° |
| Time of periastron | (T0) | 10131.5 ± 14 JD |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 1.29 ± 0.08 MJ |
| Discovery information | ||
| Discovery date | August 12, 2009 | |
| Discoverer(s) | ||
| Discovery method | Radial velocity | |
| Discovery status | Published[2] | |
| Other designations | ||
| Database references | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
HD 30562 b is an extrasolar planet which orbits the F-type main sequence star HD 30562, located approximately 86 light years away in the constellation Eridanus.[2]
This planet is unusual that it orbits in a very oval path like comets in the Solar System. The semimajor axis of the orbit is 2.30 AU and it ranges from 0.55 AU to 4.05 AU. It has minimum mass 1.29 times that of Jupiter. The orbital period of this planet is 38 months compared with 12 months for the Earth.
This eccentric Jupiter was discovered on August 12, 2009 by using the radial velocity method which was designed to study the wobble of stars cause by their planet’s gravity over the course of their orbit. Another study confirmed it in 2012.[3]
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.
- ↑ Marmier, M.; et al. (2013). "The CORALIE survey for southern extrasolar planets XVII. New and updated long period and massive planets". Astronomy and Astrophysics. 551. A90. arXiv:1211.6444. Bibcode:2013A&A...551A..90M. doi:10.1051/0004-6361/201219639.
Coordinates: 
04h 48m 36.3857s, −05° 40′ 26.561″