52 Cygni
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Cygnus |
| Right ascension | 20h 45m 39.75304s[1] |
| Declination | +30° 43′ 10.9756″[1] |
| Apparent magnitude (V) | 4.22[2] / 9.5 |
| Characteristics | |
| Spectral type | G9.5III[3] |
| U−B color index | +0.88[2] |
| B−V color index | +1.05[2] |
| Astrometry | |
| Radial velocity (Rv) | –0.72[4] km/s |
| Proper motion (μ) | RA: –8.98[1] mas/yr Dec.: +24.11[1] mas/yr |
| Parallax (π) | 16.22 ± 0.19[1] mas |
| Distance | 201 ± 2 ly (61.7 ± 0.7 pc) |
| Details | |
| Radius | 7.3[5] R☉ |
| Luminosity | 89[6] L☉ |
| Surface gravity (log g) | 2.5[6] cgs |
| Temperature | 4,677[6] K |
| Metallicity [Fe/H] | −0.24[6] dex |
| Rotational velocity (v sin i) | 3.7[6] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Database references | |
| SIMBAD | data |
52 Cygni is a triple star system in the northern constellation of Cygnus with a combined apparent magnitude of 4.22.[2] The brighter component is a probable spectroscopic binary that may consist of two similar stars; these are evolved giant stars with a combined stellar classification of G9.5III. An angular separation of 6.0″ is a faint, magnitude 9.5 companion.[3]
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 2.3 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 6.3 6.4 Lua error in package.lua at line 80: module 'strict' not found. Cite error: Invalid
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External links
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