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词条 W Corvi
释义

  1. References

{{Starbox begin
| name = W Corvi
}}{{Starbox observe
| epoch = J2000.0
| equino = J2000.0
| constell = Corvus
| ra = {{RA|12|07|34.360}}[1]
| dec = {{DEC|-13|08|59.02}}[1]
| appmag_v = 11.16 - 12.5
}}{{Starbox character
| type = Beta Lyrae variable
| class = G-
| b-v =
}}{{Starbox astrometry
| radial_v =
| prop_mo_ra = -18.8 ± 2.1
| prop_mo_dec = 18.2 ± 2.1
| parallax =
| p_error =
| parallax_footnote =
| dist_pc =
| absmag_v ={{Starbox detail
| source =
| mass =
| radius =
| gravity =
| luminosity =
| luminosity_bolometric =
| luminosity_visual =
| temperature =
| metal =
| rotation =
| rotational_velocity =
| age =
| age_gyr =
}}{{Starbox catalog
| names = W Corvi, BD−12° 3565
}}{{Starbox reference
|Simbad=W+Crv
}}{{Starbox end}}W Corvi is an eclipsing binary star system in the constellation Corvus, ranging from apparent magnitude 11.16 to 12.5 over 9 hours. Its period has increased by 1/4 second over a century. It is an unusual system in that its two stars are very close to each other yet have different surface temperatures and hence thermal transfer is not taking place as expected.[5]

References

1. ^{{cite web|url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=W+Crv&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id |title=W Crv -- Eclipsing binary of beta Lyr type (semi-detached) |accessdate=21 July 2015}}
2. ^{{cite journal|title=Changes in the Period and Light Curve of W Corvi| author=Odell, Andrew P. |journal=Monthly Notices of the Royal Astronomical Society | volume=282 |issue=2 |pages=373–83 |date=1996 |bibcode=1996MNRAS.282..373O |doi=10.1093/mnras/282.2.373}}
[2]
}}{{Stars of Corvus}}{{star-system-stub}}

2 : Corvus (constellation)|Beta Lyrae variables

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