Iota Canis Majoris
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Canis Major |
| Right ascension | 06h 56m 08.22413s[1] |
| Declination | −17° 03′ 15.2675″[1] |
| Apparent magnitude (V) | 4.40v[2] |
| Characteristics | |
| Spectral type | B3 Ib[3] |
| Variable type | Beta Cephei?[2] |
| Astrometry | |
| Radial velocity (Rv) | +41.20[4] km/s |
| Proper motion (μ) | RA: −3.56 ± 0.17[1] mas/yr Dec.: 2.42 ±0.20[1] mas/yr |
| Parallax (π) | 1.04 ± 0.20[1] mas |
| Distance | approx. 3,100 ly (approx. 1,000 pc) |
| Absolute magnitude (MV) | −5.51[5] |
| Details | |
| Mass | 13-14[5] M☉ |
| Radius | 25.9[5] R☉ |
| Luminosity | 47,000[5] L☉ |
| Temperature | 16,900[5] K |
| Rotational velocity (v sin i) | 29[5] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
Iota Canis Majoris (ι Canis Majoris, ι CMa) is a variable supergiant star in the constellation Canis Major.
Iota Canis Majoris is a blue-white B-type supergiant with an apparent magnitude that varies between +4.36 and +4.40.[6] It has been classified as a Beta Cephei type variable star,[6] but the supergiant spectral type and a period of over a month mean it is no longer considered to be of that type.[2] It is approximately 3100 light years from Earth. This star has 24.9 times the radius of the Sun.
References
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- ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 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.
- ↑ 6.0 6.1 Lua error in package.lua at line 80: module 'strict' not found.
