HD 46375

Starbox short
name=HD 46375
epoch=2000
constell=Monoceros
ra=RA|06|33|12.6237
dec=DEC|+05|27|46.532
appmag_v=7.84
dist_ly=108.9
dist_pc=33.41
spectral=K1IV
names=BD+05°1295, HIP 31246, SAO 114040
Simbad=HD+46375

HD 46375 is an 8th magnitude K-type subgiant star located approximately 109 light-years away in the constellation of Monoceros. This star resembles a orange dwarf but which has a larger radius and luminosity indicating that fusion reactions in its core are starting to cease and the star is on its way becoming a red giant. Spectral type of the star is K1 IV. Its advanced evolutionary stage shows that it is considerably older than our Sun.

This star has sometimes been classified as a member of the NGC 2244 star cluster in the Rosette Nebula, but in reality it just happens to lie in the foreground.The distance to the cluster is much greater, about 4500 light years.

In 2000, a low-mass gas giant was found orbiting the star.

Planetary system

On March 29, 2000, the planet HD 46375 b with only three quarters the mass of Saturn was discovered by Marcy, Butler, and Vogt in California, together with 79 Ceti b. This planet was discovered using the "wobble method" or radial velocity method, which calculates the rate and shape of the stellar wobble caused by the revolving planet's gravity.

PlanetboxOrbit
exoplanet = b
mass = >0.226 ± 0.019
period = 3.023573 ± 0.000065
semimajor = 0.0398 ± 0.0023
eccentricity = 0.063 ± 0.026

See also

* List of stars with confirmed extrasolar planets

External links

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