- HD 205739
Starbox begin
name = HD 205739Starbox observe
epoch =J2000.0
constell =
ra = RA|21|38|08.4055
dec = DEC|-31|44|14.945
appmag_v = 8.56 Starbox character
class = F7 V
r-i =
v-r =
b-v = 0.546
u-b =
variable =Starbox astrometry
radial_v = 9.1
prop_mo_ra =
prop_mo_dec =
gal_lat =
gal_lon =
parallax =11.07 ± 1.12
p_error =
absmag_v = 3.78
dist_ly=
dist_pc=90.3 ± 9.1Starbox detail
age = 2.84 Gyr
metal = +0.19 ± 0.04
mass = 1.22
radius = 1.33
rotation =
luminosity = 2.3
temperature = 6176 ± 45Starbox catalog
names=HD 205739, HIP 106824, HIC 106824, SAO 213152, PPM 301636 Starbox reference
Simbad = HD+205739
ARICNS =HD 205739 is a yellow-white dwarf (
spectrum F7 V). It is about 90 parsecs away from the Sun.A
Jupiter -like planet has recently been detected in a Mercury-like eccentric orbit around this star. Its discoverer speculates, "The maximum surface temperature of this planet is expected to be of the order of 400K, and the amplitude of its surface temperature change will only be of about 100K along the entire orbit".There is a trend in the results which may point to an additional companion further from its star.
PlanetboxOrbit
exoplanet = b
mass = >1.37
period = 279.8 ± 0.1
semimajor = 0.896
eccentricity = 0.27 ± 0.07ee also
*
HD 154672 References
#
# [http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=HD+205739&NbIdent=1&Radius=10&Radius.unit=arcmin&CooFrame=FK5&CooEpoch=2000&CooEqui=2000&output.max=all&o.catall=on&output.mesdisp=N&Bibyear1=1983&Bibyear2=2006&Frame1=FK5&Frame2=FK4&Frame3=G&Equi1=2000.0&Equi2=1950.0&Equi3=2000.0&Epoch1=2000.0&Epoch2=1950.0&Epoch3=2000.0 SIMBAD Query Result]
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