HD 125612
From Wikipedia, the free encyclopedia
| Observation data Epoch J2000.0 |
|
|---|---|
| Constellation (pronunciation) |
Virgo |
| Right ascension | 14h 20m 53.52s |
| Declination | -17° 28' 53.47" |
| Apparent magnitude (V) | 8.33 |
| Distance | 172.28 ly (52.82 pc) |
| Spectral type | G3V |
| Other designations | |
|
BD-16˚ 3844, HIP 70123, GSC 06143-01696, SAO 158501.
|
|
HD 125612 is a yellow dwarf star in the constellation Virgo. It is rich in heavy elements and has one known planet in orbit around it.
[edit] HD 125612 b
| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Orbital elements | ||
| Semimajor axis | (a) | 1.2 AU |
| Eccentricity | (e) | 0.39 |
| Orbital period | (P) | 502 d |
| Angular distance | (θ) | 22.719 mas |
| Longitude of periastron |
(ω) | 33° |
| Time of periastron | (T0) | 2,453,248.7 JD |
| Semi-amplitude | (K) | 64.1 m/s |
| Physical characteristics | ||
| Mass | (m) | >3.5 MJ |
| Discovery information | ||
| Discovery date | April 10, 2007 | |
| Discoverer(s) | Fischer et al. | |
| Detection method | Radial velocity | |
| Discovery site | California, USA | |
| Discovery status | Published | |
HD 125612 b is a superjovian planet. It has a mass 3.5 Jupiters and takes 1.37 year to orbit HD 125612.
The semi-major axis is 1.2 AU from the star, meaning the planet orbits from the star than Earth to the Sun. However, the planet is eccentric Jupiter, meaning the Jupiter-like planets orbit in eccentric path. At periastron, the distance is about the same as Venus (0.734 AU) from the star and at apastron, the distance is further than that of Mars (1.668 AU).
[edit] References
- Fischer et al. (10 Apr 2007). "Five Intermediate-Period Planets from the N2K Sample" 1: 13.
[edit] External links
 |
This main sequence star-related article is a stub. You can help Wikipedia by expanding it. |
