HD 10647

Starbox begin
name = HD 10647 Starbox observe
epoch = J2000.0
constell = Eridanus
ra = RA|1|42|29.32
dec = DEC|−53|44|27.00
appmag_v = +5.52 Starbox character
class = F9V
b-v = 0.551
u-b = ?
variable = none Starbox astrometry
radial_v = 12.9
prop_mo_ra = 166.97
prop_mo_dec = -106.71
gal_lat = -61.7694
gal_lon = 286.8974
parallax = 57.63
p_error = 0.64
dist_ly = 56.57
dist_pc = 17.35
absmag_v = +4.32 Starbox detail
age = 1750 million
metal = -0.03 ± 0.04 [Fe/H]
~0.93 times Solar
mass = 1.07
radius = 1.11
rotation = 7.2 days
luminosity = 1.51
temperature = 6143 ± 31 Starbox catalog
names = q¹ Eridani, Gliese 109, HR 506, HIP 7978 Starbox reference
Simbad = HD+10647
ARICNS =

HD 10647, also known as q¹ Eridani, is a yellow-white dwarf star approximately 57 light-years away in the constellation of Eridanus (the River). It is a relatively nearby 6th (almost 5th) magnitude star. The star should be visible to the unaided eye under very dark skies, but with binoculars it is an easy target. It is slightly hotter and more luminous than the Sun. It is also younger being 1,750 million years old. As of 2003, a long-period extrasolar planet has been confirmed to orbit around the star.

Planetary system

In 2003, Michel Mayor's team announced the discovery of a new planet, HD 10647 b, in Paris at the XIX IAP Colloquium "Extrasolar Planets: Today & Tormorrow". The Anglo-Australian Planet Search team could not detect the planet, but that can be due to the poor coverage of observations. The star is also chromospherically active, making radial velocity observations more difficult.

The ISO infrared space telescope detected a large excess of infrared radiation from the star, indicating a possible circumstellar disk. Because of the age of the star, the disk probably is somewhat similar to our Solar system's Kuiper Belt instead of a protoplanetary disk seen around young stars like Vega.

PlanetboxOrbit
exoplanet = b
mass = >0.93±0.18
period = 1003±56
semimajor = 2.03±0.15
eccentricity = 0.16±0.22

References

*cite journal | url=http://www.journals.uchicago.edu/doi/full/10.1086/504701 | author=Butler "et al." | title=Catalog of Nearby Exoplanets | journal=The Astrophysical Journal | volume=646 | issue=1 | pages=505–522 | year=2006 | doi=10.1086/504701
*cite journal | url=http://www.aanda.org/articles/aa/full/2008/12/aa9276-07/aa9276-07.html | author=Liseau "et al." | title=q1 Eridani: a solar-type star with a planet and a dust belt | journal=Astronomy and Astrophysics | volume=480 | year=2008 | pages=L47–L50 | doi=10.1051/0004-6361:20079276

External links

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