HD 16175 b
| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Parent star | ||
| Star | HD 16175 | |
| Constellation | Perseus | |
| Right ascension | (α) | 02h 37m 01.9110s |
| Declination | (δ) | +42° 03′ 45.479″ |
| Apparent magnitude | (mV) | 7.28 |
| Distance | 195 ly (59.8 pc) | |
| Spectral type | G0 | |
| Orbital elements | ||
| Semimajor axis | (a) | 2.07 AU (310 Gm) |
| Periastron | (q) | 1.08 AU (162 Gm) |
| Apastron | (Q) | 3.06 AU (458 Gm) |
| Eccentricity | (e) | 0.48 ± 0.1 |
| Orbital period | (P) | 856 ± 80 d (2.34 y) |
| Orbital speed | (υ) | 26.4 km/s |
| Argument of periastron |
(ω) | 223.2 ± 8° |
| Time of periastron | (T0) | 2452950 ± 100 JD |
| Semi-amplitude | (K) | 54.1 m/s |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 4.5 MJ |
| Discovery information | ||
| Discovery date | Sept 20, 2007 published Oct 22, 2007 | |
| Discoverer(s) | Peek "et al." | |
| Discovery method | radial velocity | |
| Discovery site | Lick Observatory | |
| Discovery status | Published[1] | |
| Database references | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
HD 16175 b is an extrasolar planet located approximately 195 light-years away in the constellation of Perseus, orbiting the star HD 16175. This planet masses 4.5 times that of Jupiter. However, the mass is only minimum since inclination of the orbital plane is not known. This planet orbits at about 310 gigameters, taking 2.34 years to revolve around the star. The orbit of the planet is eccentric at 48%. At periastron, the distance is close as 161 Gm; and at apastron, the distance is far as 459 Gm from the parent yellow star.
As it is typical for most exoplanets found so far, it used the technique called radial velocity or “wobble method”. It was discovered on September 20, 2007 and published on October 22, 2007 by Peek "et al." and other team members.[1]
See also
References
- ↑ 1.0 1.1 Peek, John Asher et al. (2009). "Old, rich, and eccentric: two jovian planets orbiting evolved metal-rich stars". Publications of the Astronomical Society of the Pacific 121 (880): 613–620. arXiv:0904.2786. Bibcode:2009PASP..121..613P. doi:10.1086/599862.
External links
- "HD 16175". Exoplanets. Retrieved 2008-08-24.
Coordinates: 
02h 37m 01.9110s, +42° 03′ 45.479″