HD 216770
| Observation data Epoch 2000 Equinox 2000 | |
|---|---|
| Constellation | Piscis Austrinus |
| Right ascension | 22h 55m 53.7097s |
| Declination | –26° 39′ 31.547″ |
| Apparent magnitude (V) | 8.10 |
| Distance | 123.5 ly (37.89 pc) |
| Spectral type | K1V |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 216770 is an 8th magnitude star located approximately 124 light-years away in the constellation of Piscis Austrinus. It is an orange dwarf (spectral type K1 V), and is somewhat dimmer and cooler than our Sun.
In 2003 a planet was announced orbiting it by the Geneva Extrasolar Planet Search Team.[1]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | >0.65 MJ | 0.46 | 118.45 ± 0.55 | 0.37 ± 0.06 | — | — |
| c (unconfirmed) | >0.1886 MJ | 0.102 | 12.456 | 0.3887 | — | — |
See also
References
- ^ Mayor, M.; et al. (2004). "The CORALIE survey for southern extra-solar planets XII. Orbital solutions for 16 extra-solar planets discovered with CORALIE". Astronomy and Astrophysics. 415 (1): 391–402. arXiv:astro-ph/0310316. Bibcode:2004A&A...415..391M. doi:10.1051/0004-6361:20034250.
External links
- "Notes for star HD 216770". The Extrasolar Planets Encyclopaedia.
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