HD 164922

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Star
HD 164922
AladinLite
Observation
dates equinox :  J2000.0 , epoch : J2000.0
Constellation Hercules
Right ascension 18 h 02 m 30.86 s
declination + 26 ° 18 ′ 46.8 ″
Apparent brightness 7.01 mag
Typing
Known exoplanets 1
B − V color index +0.47 
U − B color index +0.80 
Spectral class K0 V
Astrometry
Radial velocity (+20.1 ± 0.1) km / s
parallax (45.21 ± 0.54)  mas
distance (72.14 ± 0.86)  Lj
(22.12 ± 0.26)  pc  
Visual absolute brightness M vis +5.3 mag
Proper movement 
Rec. Share: (+389.41 ± 0.36)  mas / a
Dec. portion: (−602.03 ± 0.52)  mas / a
Physical Properties
Dimensions 0.94  M ☉
radius 0.9  R ☉
Luminosity

0.6  L ☉

Effective temperature approx. 5400  K
Metallicity [Fe / H] 0.17
Other names
and catalog entries
Bonn survey BD + 26 ° 3151
Henry Draper Catalog HD 164922 [1]
Hipparcos catalog HIP 88348 [2]
SAO catalog SAO 85678 [3]
Tycho catalog TYC 2099-2717-1 [4]Template: Infobox star / maintenance / specification of the TYC catalog
Other names GJ 9613 • LFT 1388 • LHS 3353 • LTT 15327 • IRAS 18005 + 2618 • 2MASS J18023085 + 2618471
annotation
  1. ↑ Estimated from apparent brightness and distance.

HD 164922 is a late main sequence star in the constellation Hercules, 72 light years from Earth, with an apparent magnitude of 7.0 mag. In 2006 Paul Butler discovered an extrasolar planet orbiting this star: HD 164922 b .

Web links

swell

  1. ↑ a b c Hipparcos catalog (ESA 1997)
  2. ^ A b Hipparcos, the New Reduction (van Leeuwen, 2007)
  3. ↑ Pulkovo radial velocities for 35493 HIP stars
  4. ↑ a b c Hipparcos, the New Reduction (van Leeuwen, 2007)