Astronomy:W Coronae Borealis
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Short description: Star in the constellation Corona Borealis
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| 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[2] mas |
| Distance | approx. 7,800 ly (approx. 2,400 pc) |
| Other designations | |
HD 146560[4] | |
| 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]
References
- ↑ "Download Data". AAVSO. https://www.aavso.org/data-download.
- ↑ 2.0 2.1 2.2 2.3 2.4 Brown, A. G. A. (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics 649: A1. doi:10.1051/0004-6361/202039657. Bibcode: 2021A&A...649A...1G. Gaia EDR3 record for this source at VizieR.
- ↑ 3.0 3.1 3.2 Samus, N. N. et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S 1: B/gcvs. Bibcode: 2009yCat....102025S.
- ↑ "W Coronae Borealis". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-id?Ident=W+CrB&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id. Retrieved 9 March 2015.
- ↑ VSX (4 January 2010). "W Coronae Borealis". AAVSO Website. American Association of Variable Star Observers. http://www.aavso.org/vsx/index.php?view=detail.top&oid=10605. Retrieved 9 March 2015.
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