HD 118203
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| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Ursa Major |
| Right ascension | 13h 34m 02.5375s |
| Declination | +53° 43′ 42.704″ |
| Apparent magnitude (V) | 8.05 |
| Distance | 289 ly (88.6 pc) |
| Spectral type | K0IV |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
| Extrasolar Planets Encyclopaedia |
data |
HD 118203 is a K-type subgiant star located in the Ursa Major constellation 289 light years away from Earth. It has higher metallicity by 25% and very similar stellar age of 4.6 billion years. It has mass 23% greater than the Sun. It is invisible to the naked eye but it can be visible using binoculars or a telescope. If this star is located 10 parsecs or 33 light years away, it would be easily visible to the unaided eye.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity |
|---|---|---|---|---|
| b | >2.13 MJ | 0.07 | 6.1335 ± 0.0006 | 0.309 ± 0.014 |
[edit] See also
[edit] References
- ^ R. Da Silva et al. (2005). "Elodie metallicity-biased search for transiting Hot Jupiters I. Two Hot Jupiters orbiting the slightly evolved stars HD 118203 and HD 149143". Astronomy and Astrophysics 446 (2): 717–722. arXiv:astro-ph/0510048. Bibcode 2006A&A...446..717D. doi:10.1051/0004-6361:20054116. http://www.aanda.org/articles/aa/full/2006/05/aa4116-05/aa4116-05.html.
