HD 221776
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Andromeda |
| Right ascension | 23h 34m 46.74220s[1] |
| Declination | +38° 01′ 26.3950″[1] |
| Apparent magnitude (V) | 6.18[2] |
| Characteristics | |
| Spectral type | K5III[2] |
| U−B color index | +1.97[3] |
| B−V color index | +1.586[2] |
| Astrometry | |
| Radial velocity (Rv) | −13.74±0.11[4] km/s |
| Proper motion (μ) | RA: 10.37±0.32[1] mas/yr Dec.: 10.59±0.23[1] mas/yr |
| Parallax (π) | 4.30 ± 0.33[1] mas |
| Distance | 760 ± 60 ly (230 ± 20 pc) |
| Absolute magnitude (MV) | −0.68[2] |
| Details | |
| Luminosity | 451[5] L☉ |
| Temperature | 3,800[5] K |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Database references | |
| SIMBAD | data |
HD 221776 is a double star in the northern constellation of Andromeda. It has an infrared excess, indicating the star is associated with a cloud of dust particles.[5] There is a magnitude 11.8 companion at angular separation of 19.8″ along a position angle of 329°, as of 2002.[6]
References
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- ↑ 2.0 2.1 2.2 2.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 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.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
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