Gliese 638

Starbox begin
name=Gliese 638 Starbox observe
epoch=J2000
ra=RA|16|45|06.3511
dec=DEC| +33|30|33.226
appmag_v=8.11
constell=Hercules Starbox character
class=K7V [cite journal
last=Wilson | first=O. C.
title=Relationship between colors and spectra of late main-sequence stars
journal=Astrophysical Journal
year=1962 | volume=136 | pages=793–799
url=http://adsabs.harvard.edu/abs/1962ApJ...136..793W
accessdate=2007-10-18
doi=10.1086/147437 ]
b-v=1.37
u-b=1.29
variable=Suspected Starbox astrometry
radial_v=-29.6±0.9
prop_mo_ra=-39.18
prop_mo_dec=383.43
parallax=102.35
p_error=0.88
absmag_v= Starbox catalog
names=GJ 638, BD +33°2777, HD 151288, LTT 14967, SAO 65525, NSV 7951, HIP 82003. Starbox reference
Simbad=NSV+7951

Gliese 638 is a main sequence star in the constellation of Hercules. It is located about 31.9 light years from the Earth. This is a suspected variable star with a measured apparent magnitude that ranges from 8.09–8.11. [cite book
author=Kukarkin, B. V. "et al" | year=1981
title=Catalogue of suspected variable stars
publisher=Academy of Sciences
location=Moscow, USSR ] As a K-class star, it has a lower mass than the Sun, and consequently is less luminous.

References