BE Camelopardalis
Location of BE Camelopardalis (circled in red) | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 03h 49m 31.27755s[1] |
| Declination | +65° 31′ 33.5258″[1] |
| Apparent magnitude (V) | 4.39[2] (4.35 - 4.48)[3] |
| Characteristics | |
| Evolutionary stage | asymptotic giant branch[4] |
| Spectral type | M2 II[5] |
| B−V color index | 1.870±0.029[2] |
| Variable type | Lc[3] |
| Astrometry | |
| Radial velocity (Rv) | −1.70±1.47[2] km/s |
| Proper motion (μ) | RA: +0.319 mas/yr[1] Dec.: −15.593 mas/yr[1] |
| Parallax (π) | 3.3288±0.1874 mas[1] |
| Distance | 958+53 −51 ly (293.7+16.4 −15.5 pc)[6] |
| Absolute magnitude (MV) | −2.51[2] |
| Details | |
| Mass | 2.93[7] M☉ |
| Radius | 250[8] R☉ |
| Luminosity | 10,600[8] L☉ |
| Temperature | 3,660[8] K |
| Other designations | |
| BE Cam, BD+65°369, HD 23475, HIP 17884, HR 1155, SAO 12916[9] | |
| 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.[2] The star is located roughly 960 light years away.[6]
This object is an M-type bright giant with a stellar classification of M2 II,[5] 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.[12] It was given its variable star designation, BE Camelopardalis, in 1977.[13] It is classified as an irregular variable of subtype Lc and its brightness varies from magnitude +4.35 down to +4.48.[3] Having exhausted the supply of hydrogen at its core, the star has expanded to around 250[8] times the Sun's radius. It has 2.9[7] 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.[8]
References
[edit | edit source]- ^ a b c d Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value). Gaia DR3 record for this source at VizieR.
- ^ a b c d e Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value). Data about this star can be seen here.
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c d e Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
