21 Camelopardalis
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 05h 40m 28.99683s[1] |
| Declination | +61° 56′ 56.0999″[1] |
| Apparent magnitude (V) | 6.867[2] |
| Characteristics | |
| Spectral type | A5[3] |
| B−V color index | +0.22[4] |
| Astrometry | |
| Radial velocity (Rv) | −15.5[5] km/s |
| Proper motion (μ) | RA: −6.911[1] mas/yr Dec.: +1.818[1] mas/yr |
| Parallax (π) | 5.0131±0.0864 mas[1] |
| Distance | 650 ± 10 ly (199 ± 3 pc) |
| Absolute magnitude (MV) | 0.90[6] |
| Details | |
| Radius | 3.121[7] R☉ |
| Luminosity | 35.66[6] L☉ |
| Temperature | 7,619[7] K |
| Other designations | |
| 21 Cam, BD+61°806, FK5 1150, HD 37136, HIP 26700, SAO 13564[8] | |
| Database references | |
| SIMBAD | data |
21 Camelopardalis is a star in the northern circumpolar constellation of Camelopardalis, located around 650 light years away from the Sun.[1] It is a challenge to view with the naked eye even under excellent viewing conditions, having an apparent visual magnitude of 6.9.[2] This is one of the fainter stars with a Flamsteed designation, one of only 220 below the magnitude cutoff for the Bright Star Catalogue.[9] It is moving closer to the Earth with a heliocentric radial velocity of −15.5 km/s.[5]
The spectral type for 21 Camelopardalis is given only as A5 with no published luminosity class. It is treated as a normal main sequence star,[10] although it is calculated to be larger and more luminous than a typical A5 main sequence star.[7][11] Based upon changes to its proper motion over time, this is a probable astrometric binary.[12]
References
[edit | edit source]- ^ a b c d e f Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value). Gaia DR2 record for this source at VizieR.
- ^ a b 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).
- ^ 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).
- ^ 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).
- ^ 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).
