HD 68988
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| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Ursa Major |
| Right ascension | 08h 18m 22.1731s |
| Declination | +61° 27′ 38.599″ |
| Apparent magnitude (V) | +8.21 |
| Distance | 192 ly (58.8 pc) |
| Spectral type | G0 |
| Other designations | |
HD 68988 is an 8th magnitude G-type star located approximately 192 light-years away in Ursa Major constellation.
Planetary system
There are two planets: HD 68988 b was discovered in 2002[1] and HD 68988 c was discovered in 2006.[2]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | >1.86 ± 0.16 MJ | 0.0704 ± 0.0041 | 6.27711 ± 0.00021 | 0.1249 ± 0.0087 | — | — |
| c | >5–20 MJ | 5–7 | 4000–22000 | ? | — | — |
See also
- List of extrasolar planets
References
- ↑ Vogt, Steven S. et al. (2002). "Ten Low-Mass Companions from the Keck Precision Velocity Survey". The Astrophysical Journal 568 (1): 352–362. arXiv:astro-ph/0110378. Bibcode:2002ApJ...568..352V. doi:10.1086/338768.
- ↑ 2.0 2.1 Wright, J. T. et al. (2007). "Four New Exoplanets and Hints of Additional Substellar Companions to Exoplanet Host Stars". The Astrophysical Journal 657 (1): 533–545. arXiv:astro-ph/0611658. Bibcode:2007ApJ...657..533W. doi:10.1086/510553.
- ↑ Butler, R. P. et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646 (1): 505–522. arXiv:astro-ph/0607493. Bibcode:2006ApJ...646..505B. doi:10.1086/504701.
External links
- "Notes for star HD 68988". The Extrasolar Planets Encyclopaedia. Retrieved 2008-08-25.
- "HD 68988". Extrasolar Visions. Retrieved 2008-08-25.
Coordinates: 
08h 18m 22.1731s, +61° 27′ 38.599″
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