W Canis Majoris
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) |
|
|---|---|
| Constellation | Canis Major |
| Right ascension | 7h 08m 03s |
| Declination | −11° 55′ 24″ |
| Apparent magnitude (V) | 6.29-7.07v[1] |
| Characteristics | |
| Spectral type | C6,3(N)[1] |
| B−V color index | 2.55[2] |
| Variable type | semiregular variable[1] |
| Astrometry | |
| Radial velocity (Rv) | 19.6[3] km/s |
| Proper motion (μ) | RA: -6.22[4] mas/yr Dec.: 2.82[4] mas/yr |
| Parallax (π) | 0.39[3] mas |
| Distance | 1444-1450[5] ly (443-445[5] pc) |
| Absolute magnitude (MV) | -4.13[5] |
| Details | |
| Radius | 234[5] R☉ |
| Temperature | 2900[5] K |
| Metallicity [Fe/H] | 0.3[4] dex |
| Other designations | |
W Canis Majoris is a carbon star in the constellation Canis Major. A cool star, it has a surface temperature of around 2900 K and a radius 234 times that of the sun, with a bolometric magnitude of -4.13 and distance estimated at 443 or 445 parsecs (1444-1450) light-years based on bolometric magnitude or radius. [5] It varies between magnitudes 6.27 and 7.09 over a period of 160 days.[1]
See also
References
- ↑ 1.0 1.1 1.2 1.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 4.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 5.0 5.1 5.2 5.3 5.4 5.5 Lua error in package.lua at line 80: module 'strict' not found.
