HD 185269
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Cygnus |
| Right ascension | 19h 37m 11.7408s |
| Declination | +28° 29′ 59.509″ |
| Apparent magnitude (V) | +6.67 |
| Distance | 153.3 ± 3.3 ly (47 ± 1 pc) |
| Spectral type | G0IV |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 185269 is a seventh magnitude star approximately 153 light-years away in the constellation Cygnus. It is easily visible to binoculars, but not the naked eye.
The star is a quarter more massive and four times more luminous than our local star. The spectrum of the star is G0IV.
Planetary system
On August 18, 2006, a Jupiter-mass hot Jupiter was found by Moutou and Johnson. The planet takes 6.8 days to orbit at 0.077 AU from the star in an eccentric orbit.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | >0.94 MJ | 0.077 | 6.838 ± 0.001 | 0.3 ± 0.04 | — | — |
See also
References
- Moutou, C.; Loeillet, B.; Bouchy, F.; Da Silva, R.; Mayor, M.; Pont, F.; Queloz, D.; Santos, N. C.; Ségransan, D.; Udry, S.; Zucker, S. (October 2006). "ELODIE metallicity-biased search for transiting Hot Jupiters. III. A hot Jupiter orbiting the star HD 185269". Astronomy and Astrophysics. 458 (1): 327–329. Bibcode:2006A&A...458..327M. doi:10.1051/0004-6361:20066029.
- Johnson; Marcy, Geoffrey W.; Fischer, Debra A.; Henry, Gregory W.; Wright, Jason T.; Isaacson, Howard; McCarthy, Chris (December 2006). "An Eccentric Hot Jupiter Orbiting the Subgiant HD 185269". The Astrophysical Journal. 652 (2): 1724–1728. arXiv:astro-ph/0608035
. Bibcode:2006ApJ...652.1724J. doi:10.1086/508255.
External links
- "Notes for star HD 185269". The Extrasolar Planet Encyclopaedia.
- "HD 185269". Systemic.
Coordinates: 
19h 37m 11.7408s, +28° 29′ 59.509″
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