19 Cephei
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Cepheus |
| Right ascension | 22h 05m 08.78995s[1] |
| Declination | +62° 16′ 47.3301″[1] |
| Apparent magnitude (V) | 5.08[2] |
| Characteristics | |
| Spectral type | O9Ib[3] |
| U−B color index | −0.91[2] |
| B−V color index | +0.06[2] |
| Astrometry | |
| Radial velocity (Rv) | −12.8±0.9[4] km/s |
| Proper motion (μ) | RA: −1.16[1] mas/yr Dec.: −2.96[1] mas/yr |
| Parallax (π) | 1.58 ± 0.19[1] mas |
| Distance | approx. 2,100 ly (approx. 630 pc) |
| Details | |
| Mass | 20[5] M☉ |
| Surface gravity (log g) | 3.40±0.08[6] cgs |
| Temperature | 32,983±1,428[6] K |
| Metallicity [Fe/H] | 0.06±0.08[6] dex |
| Rotational velocity (v sin i) | 53[3] km/s |
| Other designations | |
19 Cephei is a star in the northern circumpolar constellation of Cepheus.[7] This is a supergiant star[5] with a stellar classification of O9Ib.[3] It is a member of CepOB2, an OB association of massive stars located about 615 parsecs (2,010 ly) from the Sun.[5]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Lua error in package.lua at line 80: module 'strict' not found.Vizier catalog entry
- ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 3.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 5.0 5.1 5.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 6.0 6.1 6.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
