W Cygni
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) |
|
|---|---|
| Constellation | Cygnus |
| Right ascension | 21h 36m 02.49619s [1] |
| Declination | +45° 22′ 28.5292″ [1] |
| Spectral type | M4e-M6e(Tc:)III[2] |
W Cygni is a semi-regular variable star in the constellation Cygnus, located 618 light-years from Earth. It has a maximum magnitude of 5.10 and a minimum magnitude 6.83; its period of 131 days. It is a red giant ranging between spectral types M4e-M6e(Tc:)III,[2]
References
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