BE Camelopardalis

BE Camelopardalis

File:BECamLightCurve.png A light curve for BE Camelopardalis, plotted from Hipparcos data
Observation data Epoch J2000      Equinox J2000
Constellation	Camelopardalis
Right ascension	Template:RA
Declination	Template:DEC
Apparent magnitude (V)	4.39 (4.35 - 4.48)
Characteristics
Evolutionary stage	asymptotic giant branch
Spectral type	M2 II
B−V Template:Engvar	Template:Val
Variable type	Lc
Astrometry
Radial velocity (Rv)	Template:Val km/s
Proper motion (μ)	RA: +0.319 mas/yr Dec.: Template:Val mas/yr
Parallax (π)	3.3288±0.1874 mas
Distance	Template:Val ly (Template:Val pc)
Absolute magnitude (MV)	−2.51
Details
Mass	2.93 Template:Solar mass
Radius	250 Template:Solar radius
Luminosity	10,600 Template:Solar luminosity
Temperature	3,660 K
Metallicity [Fe/H]	{{{metal_fe2}}} dex
Other designations
Template:Odlist
Database references
SIMBAD	data

BE Camelopardalis is a solitary variable star in the northern circumpolar constellation of Camelopardalis. It is visible to the naked eye as a faint, red-hued point of light with an apparent visual magnitude that fluctuates around 4.39. The star is located roughly 960 light years away.

This object is an M-type bright giant with a stellar classification of M2 II, and is currently on the asymptotic giant branch. In 1928, Joel Stebbins and Charles Morse Huffer announced that the star, then called HR 1155, is a variable star, based on observations made at Washburn Observatory. It was given its variable star designation, BE Camelopardalis, in 1977. It is classified as an irregular variable of subtype Lc and its brightness varies from magnitude +4.35 down to +4.48. Having exhausted the supply of hydrogen at its core, the star has expanded to around 250 times the Sun's radius. It has 2.9 times the Sun's mass and is radiating over 10,000 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 3,660 K.