HD 185269

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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

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[edit]

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.

The HD 185269 planetary system
(in order from star)
Mass Semimajor axis
Orbital period
Eccentricity Inclination Radius
b >0.94 MJ 0.077 6.838 ± 0.001 0.3 ± 0.04

See also[edit]


  • 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. Bibcode:2006ApJ...652.1724J. arXiv:astro-ph/0608035Freely accessible. doi:10.1086/508255. 

External links[edit]

Coordinates: Sky map 19h 37m 11.7408s, +28° 29′ 59.509″