HD 17092

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HD 17092
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Perseus
Right ascension 02h 46m 22.1153s
Declination +49° 39′ 11.063″
Apparent magnitude (V) 7.73[1]
Characteristics
Spectral type K0III[2]
B−V color index 1.26
Astrometry
Proper motion (μ) RA: 37.40 mas/yr
Dec.: -13.80 mas/yr
Distance 355 ± 179 ly
(109 ± 55 pc)
Absolute magnitude (MV) 2.54
Details
Mass 2.3 ± 0.3 M
Temperature 4650 ± 35 K
Metallicity 0.18 ± 0.08
Other designations

HD 17092 is an 8th magnitude star in the constellation of Perseus. It is an orange giant (spectral type K0III).

The star is visible only with binoculars or better equipment.

Planetary system[edit]

On 6 May 2007, a planet HD 17092 b was discovered with the Hobby-Eberly Telescope by Niedzielski who used the wobble method. This planet is a massive gas giant and orbits at 1.29 astronomical units from the star with a period of about 360 days.[3]

The HD 17092 planetary system[3]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b >4.6 ± 0.3 MJ 1.29 ± 0.05 359.9 ± 2.4 0.166 ± 0.052

References[edit]

  1. ^ Cannon, A.E.; Pickering; Pickering, E.C (1924). "Henry Draper (HD) catalog and HD extension". Annals of the Astronomical Observatory. Bibcode:1924hdhc.bookQ....C. 
  2. ^ The Tycho-1 Catalog
  3. ^ a b Niedzielski, A. et al. (2007). "A Planetary‐Mass Companion to the K0 Giant HD 17092". The Astrophysical Journal 669 (2): 1354–1358. arXiv:0705.0935. Bibcode:2007ApJ...669.1354N. doi:10.1086/521784. 

Coordinates: Sky map 02h 46m 22s, +49° 39′ 11″