HD 222109
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Andromeda |
| Right ascension | 23h 37m 32.04280s[1] |
| Declination | +44° 25′ 44.3723″[1] |
| Apparent magnitude (V) | 5.80[2] (6.08 + 7.38)[3] |
| Characteristics | |
| Spectral type | B8V[4] |
| U−B color index | -0.32[2] |
| B−V color index | -0.06[2] |
| Astrometry | |
| Radial velocity (Rv) | −22.90±3.9[5] km/s |
| Proper motion (μ) | RA: 14.20±0.30[1] mas/yr Dec.: −17.63±0.45[1] mas/yr |
| Parallax (π) | 4.04 ± 0.52[1] mas |
| Distance | approx. 800 ly (approx. 250 pc) |
| Absolute magnitude (MV) | 5.753 |
| Details | |
| Surface gravity (log g) | 3.932±0.021[6] cgs |
| Temperature | 12,157±100[6] K |
| Rotational velocity (v sin i) | 158±13[6] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Database references | |
| SIMBAD | data |
HD 222109 is a binary star system in the northern constellation of Andromeda. The pair orbit each other with a period of 351.22 years, a typical separation of 0.41″, and an orbital eccentricity of 0.39.[3]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 2.2 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.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 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.
External links
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