52 Cygni
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52 Cygni A and B |
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| Observation data Epoch J2000 |
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|---|---|
| Constellation (pronunciation) |
Cygnus |
| Right ascension | 20h 45m 39.7537s |
| Declination | +30° 43' 10.975"' |
| Apparent magnitude (V) | 4.233 / 9.5 |
| Characteristics | |
| Spectral type | G9.5III |
| U-B color index | 0.89 |
| B-V color index | 1.05 |
| Variable type | None |
| Astrometry | |
| Radial velocity (Rv) | -1.3 km/s |
| Proper motion (μ) | RA: -8.01 mas/yr Dec.: 24.04 mas/yr |
| Parallax (π) | 15.84 ± 0.62 mas |
| Distance | 206 ± 8 ly (63 ± 2 pc) |
| Absolute magnitude (MV) | 5.279 |
| Details | |
| Mass | ? M☉ |
| Radius | ? R☉ |
| Surface gravity (log g) | ? |
| Luminosity | ? L☉ |
| Temperature | ? K |
| Metallicity | ? |
| Rotation | <17 km/s |
| Age | ? years |
| Visual binary orbit | |
| Companion | 52 Cygni B |
| Semimajor axis (a) | 6.1" |
| Other designations | |
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GCRV 13012, IDS 20415+3021, TD1 27245, ADS 14259 A, IRC +30450, TYC 2687-2651-1, BD+30° 4167, GSC 02687-02651, JP11 3272, UBV M 25148, CCDM J20457+3043A, HD 197912, PLX 4952, UBV 17981, CSI+30° 4167 1, HIC 102453, ROT 3030, 1E 2043.5+3032, HIP 102453, SAO 70467, GC 28942, HR 7942, BD+30° 4167B, ADS 14259 B, CSI+30° 4167 2, STF 2726B, CCDM J20457+3043B.
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| Database references | |
| SIMBAD | data |
| Database references | |
| SIMBAD | data |
52 Cygni is a binary star system in the Veil Nebula.
[edit] Reference
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