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Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Corona Borealis |
Right ascension | 16h 15m 24.549s [2] |
Declination | +37° 47′ 44.21″ [2] |
Apparent magnitude (V) | 7.8 - 14.3 [3] |
Characteristics | |
Evolutionary stage | asymptotic giant branch |
Spectral type | M2e-M5e [3] |
Variable type | mira [3] |
Astrometry | |
Proper motion (μ) |
RA: −9.527
[2]
mas/
yr Dec.: -6.275 [2] mas/ yr |
Parallax (π) | 0.4201 ± 0.0447 mas [2] |
Distance | approx. 7,800
ly (approx. 2,400 pc) |
Other designations | |
Database references | |
SIMBAD | data |
W Coronae Borealis (W CrB) is a Mira-type long period variable star in the constellation Corona Borealis. Its apparent magnitude varies between 7.8 and 14.3 over a period of 238 days. [5]
![]() | The topic of this article may not meet Wikipedia's
general notability guideline. (January 2021) |
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Corona Borealis |
Right ascension | 16h 15m 24.549s [2] |
Declination | +37° 47′ 44.21″ [2] |
Apparent magnitude (V) | 7.8 - 14.3 [3] |
Characteristics | |
Evolutionary stage | asymptotic giant branch |
Spectral type | M2e-M5e [3] |
Variable type | mira [3] |
Astrometry | |
Proper motion (μ) |
RA: −9.527
[2]
mas/
yr Dec.: -6.275 [2] mas/ yr |
Parallax (π) | 0.4201 ± 0.0447 mas [2] |
Distance | approx. 7,800
ly (approx. 2,400 pc) |
Other designations | |
Database references | |
SIMBAD | data |
W Coronae Borealis (W CrB) is a Mira-type long period variable star in the constellation Corona Borealis. Its apparent magnitude varies between 7.8 and 14.3 over a period of 238 days. [5]