Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Camelopardalis |
Right ascension | 03h 49m 31.27742s [2] |
Declination | +65° 31′ 33.5567″ [2] |
Apparent magnitude (V) | 4.39 [3] (4.35 - 4.48) [4] |
Characteristics | |
Evolutionary stage | asymptotic giant branch [5] |
Spectral type | M2 II [6] |
B−V color index | 1.870±0.029 [3] |
Variable type | Lc [4] |
Astrometry | |
Radial velocity (Rv) | −1.70±1.47 [3] km/s |
Proper motion (μ) |
RA: +0.304
[2]
mas/
yr Dec.: −17.482 [2] mas/ yr |
Parallax (π) | 4.10 ± 0.46 mas [2] |
Distance | approx. 800
ly (approx. 240 pc) |
Absolute magnitude (MV) | −2.51 [3] |
Details | |
Mass | 2.93 [7] M☉ |
Radius | 176 [8] R☉ |
Luminosity | 4,613 - 4,786 [8] L☉ |
Temperature | 3,615±170 [8] K |
Other designations | |
Database references | |
SIMBAD | data |
BE Camelopardalis is a solitary [10] 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. [3] The star is located roughly 800 light years away from the Sun based on stellar parallax. [2]
This object is an M-type bright giant with a stellar classification of M2 II, [6] and is currently on the asymptotic giant branch. It is classified as an irregular variable of subtype Lc and its brightness varies from magnitude +4.35 down to +4.48. [4] Having exhausted the supply of hydrogen at its core, the star has expanded to around 176 [8] times the Sun's radius. It has 2.9 [7] times the Sun's mass and is radiating over four thousand times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 3,615 K. [8]