HD 187085
From Wikipedia, the free encyclopedia
| Observation data Epoch J2000.0 |
|
|---|---|
| Constellation (pronunciation) |
Sagittarius |
| Right ascension | 19h 49m 33s |
| Declination | -37° 46' 50" |
| Apparent magnitude (V) | +7.22 |
| Distance | 147 ly (45 pc) |
| Spectral type | G0V |
| Other designations | |
|
HIP 97546
|
|
HD 187085 is a yellow main sequence star about 147 light-years away in the constellation Sagittarius. It is estimated to be younger than our Sun, at about 3.3 (± 1) billion years old, and more massive at 1.22 solar masses.
In 2006, an extrasolar planet was announced orbiting HD 187085.
Contents |
[edit] HD 187085 b
|
Discovery
|
|
|---|---|
| Discovered by | Jones et al. |
| Discovery site | Australia |
| Discovery date | 2006 |
| Detection method | Radial velocity |
| Semi-major axis | 2.05 AU |
| Eccentricity | 0.47 |
| Orbital period | 986 d |
| Angular distance | 45.576 mas |
| Longitude of periastron | 94° |
| Time of periastron | 2,450,912 JD |
| Semi-amplitude | 26 m/s |
|
Physical characteristics
|
|
| Mass | >0.75 MJ |
HD 187085 b is an extrasolar planet discovered in 2006 by a team lead by Geoffrey Marcy. HD 187085 b orbits its star in a highly eccentric orbit. The discovery was made as part of the Anglo-Australian Planet Search.
[edit] See also
[edit] References
- Jones et al. (2006). "High-eccentricity planets from the Anglo-Australian Planet Search". Monthly Notices of the Royal Astronomical Society 369: 249–256. doi:. (web Preprint)
[edit] External links
 |
This main sequence star-related article is a stub. You can help Wikipedia by expanding it. |
 |
This extrasolar planet related article is a stub. You can help Wikipedia by expanding it. |
