HD 164922

Starbox begin
name = HD 164922 Starbox observe
epoch = J2000.0
constell = Hercules
ra = RA|18|02|30.86
dec = DEC|+26|18|46.81
appmag_v = +7.01 Starbox character
class = K0V
r-i = 0.36
v-r = 0.42
b-v = 0.80
u-b = 0.47
variable = suspected Starbox astrometry
radial_v = +22.8
prop_mo_ra = 389.77
prop_mo_dec = −602.44
parallax = 45.61
p_error = 0.71
dist_ly = 71.5
dist_pc = 21.93
absmag_v = 5.31 Starbox detail
age = 13.4 × 10⁹
metal = 0.17 / 148%
mass = 0.94
radius = 0.9
density = 1816
gravity = 4.53
rotation = ~58.7
luminosity = 0.608
temperature = 5385 Starbox catalog
names = BD+26°3151, GJ 700.2, Wo 9613, LFT 1388, LTT 15327, SAO 85678, HIP 88348 HD 164922 is a seventh magnitude star in the constellation of Hercules. It is an orange dwarf with a spectral type K0V. To view it, binoculars or a telescope are necessary, as it is too faint to be visible to the naked eye. It is 71.5 light years distant from the Earth. At an age of 13.4 billion years, it will soon evolve away from the main-sequence and expand to become a red giant. Its metallicity is nearly 50% more than the Sun.

Planetary system

On 15 July, 2006, a long period Saturn-mass exoplanet was announced orbiting around HD 164922. This planet orbits at 2.11 AU from the star with a low eccentricity value of 0.05.

PlanetboxOrbit
exoplanet = b
mass = >0.36 ± 0.046
period = 1155 ± 23
semimajor = 2.11 ± 0.13
eccentricity = 0.05 ± 0.14

External links

* [http://exoplanet.eu/star.php?st=HD+164922 The Extrasolar Planet Encyclopedia: HD 164922]
* [http://simbad.u-strasbg.fr/simbad/sim-id?protocol=html&Ident=HD+164922&NbIdent=1&Radius=10&Radius.unit=arcmin&submit=submit+id SIMBAD: HD 164922]
* [http://www.ari.uni-heidelberg.de/datenbanken/aricns/cnspages/4c01461.htm ARICNS: HD 164922]