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Created page with "{{Night Sky | image = | designation =6 Cas | rightascension =23<sup>h</sup> 48<sup>m</sup> 50.1705<sup>s</sup><ref name=simbad>{{cite web|url=http://simbad.u-st..."
{{Night Sky
| image =
| designation =6 Cas
| rightascension =23<sup>h</sup> 48<sup>m</sup> 50.1705<sup>s</sup><ref name=simbad>{{cite web|url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=6%20Cassiopeiae|title=6 Cassiopeiae|accessdate=December 29, 2021|work=Simbad Astronomical Database|publisher=simbad.u-strasbg.fr}}</ref><ref name=hip>{{cite journal
|last1=van Leeuwen |first1=F.
|title=Validation of the new Hipparcos reduction
|journal=Astronomy & Astrophysics
|volume=474
|issue=2|page=653-664|date=2007
|doi=10.1051/0004-6361:20078357
|bibcode=2007A&A...474..653V
|ref=harv
}} {{arXiv|0708.1752}}</ref>
| declination =+62° 12′ 52.2577″<ref name=simbad/><ref name=hip/>
| distance =6154.03 ly<ref name=universeguide>{{cite web|url=https://www.universeguide.com/star/117447/6cassiopeiae|title=6 Cassiopeiae|accessdate=December 29, 2021|publisher=universeguide.com}}</ref>
| constellation =Cassiopeia
| type =Hypergiant star
| dimensions =
| magnitude =Apparent Mag: +5.43<ref name=universeguide/><br/>Absolute Mag: -8.06 / -5.95<ref name=universeguide/>
| redshift =
| radvelocity =-42.30 ± 0.6 km/s<ref name=simbad/><ref>
{{cite journal
|last1=Gontcharov |first1=G. A.
|title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
|journal=Astronomy Letters
|volume=32
|issue=11|page=759-771|date=2006
|doi=10.1134/S1063773706110065
|bibcode=2006AstL...32..759G
|ref=harv
}} {{arXiv|1606.08053}}
</ref>
| propmotion =RA: -3.57 mas/yr<ref name=simbad/><ref name=hip/><br/>Dec: -1.57 mas/yr<ref name=simbad/><ref name=hip/>
| parallax =0.53 ± 0.37 mas<ref name=simbad/><ref name=hip/>
}}
'''6 Cassiopeiae''' (6 Cas, HD 223385, HIP 117447, V566 Cas) is a [[hypergiant star]] in the [[constellation]] of [[Cassiopeia]].<ref name=illinois>{{cite web|url=http://stars.astro.illinois.edu/sow/6cas.html|title=6 Cas|accessdate=December 29, 2021|publisher=stars.astro.illinois.edu|author=Jim Kaler|date=September 13, 2003}}</ref> "6 Cassiopeiae" is the [[Flamsteed designation]] for the star, where stars are numbered by their [[right ascension]] relative to other stars present in the constellation they're in. The star is faint, shining at the fifth [[star magnitude|magnitude]], but is just about bright enough to be visible with the unaided eye where it has a white color.
6 Cassiopeiae lies around 6154.03 [[light year]]s from [[Earth]].<ref name=universeguide/> The star is quite large with an estimated mass of 25 [[solar mass]]es and radius 170 time larger than the [[Sun]]'s.<ref name=nineplanets>{{cite web|url=https://nineplanets.org/cassiopeia-constellation/|title=Cassiopeia Constellation|accessdate=December 29, 2021|publisher=nineplanets.org|date=July 14, 2020}}</ref> The star's surface is believed to have a temperature of 10,023 K, which combined with the stars great radius mean it emits more than 200,000 times the energy that Sol does. The star's intrinsic brightness results in an [[absolute magnitude]] of around -6, but the sheer distance to the star along with an interveneing dust cloud dims this to +5.43.<ref name=illinois/> The star rotates slowly with an equitorial speed of 50 km/s which means it takes 170 days for 6 Cassiopeiae to complete one revolution. It also produces a variable but strong [[stellar wind]] that can ejects matter from the star at speeds up to 180 km/s.
The star is known to be a type of pulsating [[variable star]] known as an "Alpha Cygni" type.<ref>
{{cite journal
|last1=Samus |first1=N. N.
|last2=Kazarovets |first2=E. V.
|last3=Durlevich |first3=O. V.
|last4=Kireeva |first4=N. N.
|last5=Pastukhova |first5=E. N.
|last6= |first6=
|last7= |first7=
|last8= |first8=
|last9= |first9=
|display-authors=3
|title=General Catalogue of Variable Stars: Version GCVS 5.1
|journal=Astronomy Reports
|volume=61
|issue=1|page=80-88|date=2017
|doi=10.1134/S1063772917010085
|bibcode=2017ARep...61...80S
|ref=harv
}}
</ref><ref>
{{cite journal
|last1=ESA |first1=
|display-authors=3
|title=The HIPPARCOS and TYCHO catalogues. Astrometric and photometric star catalogues derived from the ESA HIPPARCOS Space Astrometry Mission
|journal=ESA Special Publication
|volume=1200
|issue=|page=|date=1997
|doi=
|bibcode=1997ESASP1200.....E
|ref=harv
}}
</ref>The star varies in brightess only by 0.09 magnitudes with a period of 0.077 days or a little under two hours.<ref name=universeguide/><ref>{{cite web|url=http://www.sai.msu.su/gcvs/cgi-bin/search.cgi?search=V566+Cas|title=V566 Cas|accessdate=December 29, 2021|publisher=sai.msu.su}}</ref> The star is not known to possess any [[exoplanet]]s.
==References==
{{reflist}}
{{Stars}}
[[Category:Astronomy]]
[[Category:Stars]]
| image =
| designation =6 Cas
| rightascension =23<sup>h</sup> 48<sup>m</sup> 50.1705<sup>s</sup><ref name=simbad>{{cite web|url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=6%20Cassiopeiae|title=6 Cassiopeiae|accessdate=December 29, 2021|work=Simbad Astronomical Database|publisher=simbad.u-strasbg.fr}}</ref><ref name=hip>{{cite journal
|last1=van Leeuwen |first1=F.
|title=Validation of the new Hipparcos reduction
|journal=Astronomy & Astrophysics
|volume=474
|issue=2|page=653-664|date=2007
|doi=10.1051/0004-6361:20078357
|bibcode=2007A&A...474..653V
|ref=harv
}} {{arXiv|0708.1752}}</ref>
| declination =+62° 12′ 52.2577″<ref name=simbad/><ref name=hip/>
| distance =6154.03 ly<ref name=universeguide>{{cite web|url=https://www.universeguide.com/star/117447/6cassiopeiae|title=6 Cassiopeiae|accessdate=December 29, 2021|publisher=universeguide.com}}</ref>
| constellation =Cassiopeia
| type =Hypergiant star
| dimensions =
| magnitude =Apparent Mag: +5.43<ref name=universeguide/><br/>Absolute Mag: -8.06 / -5.95<ref name=universeguide/>
| redshift =
| radvelocity =-42.30 ± 0.6 km/s<ref name=simbad/><ref>
{{cite journal
|last1=Gontcharov |first1=G. A.
|title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
|journal=Astronomy Letters
|volume=32
|issue=11|page=759-771|date=2006
|doi=10.1134/S1063773706110065
|bibcode=2006AstL...32..759G
|ref=harv
}} {{arXiv|1606.08053}}
</ref>
| propmotion =RA: -3.57 mas/yr<ref name=simbad/><ref name=hip/><br/>Dec: -1.57 mas/yr<ref name=simbad/><ref name=hip/>
| parallax =0.53 ± 0.37 mas<ref name=simbad/><ref name=hip/>
}}
'''6 Cassiopeiae''' (6 Cas, HD 223385, HIP 117447, V566 Cas) is a [[hypergiant star]] in the [[constellation]] of [[Cassiopeia]].<ref name=illinois>{{cite web|url=http://stars.astro.illinois.edu/sow/6cas.html|title=6 Cas|accessdate=December 29, 2021|publisher=stars.astro.illinois.edu|author=Jim Kaler|date=September 13, 2003}}</ref> "6 Cassiopeiae" is the [[Flamsteed designation]] for the star, where stars are numbered by their [[right ascension]] relative to other stars present in the constellation they're in. The star is faint, shining at the fifth [[star magnitude|magnitude]], but is just about bright enough to be visible with the unaided eye where it has a white color.
6 Cassiopeiae lies around 6154.03 [[light year]]s from [[Earth]].<ref name=universeguide/> The star is quite large with an estimated mass of 25 [[solar mass]]es and radius 170 time larger than the [[Sun]]'s.<ref name=nineplanets>{{cite web|url=https://nineplanets.org/cassiopeia-constellation/|title=Cassiopeia Constellation|accessdate=December 29, 2021|publisher=nineplanets.org|date=July 14, 2020}}</ref> The star's surface is believed to have a temperature of 10,023 K, which combined with the stars great radius mean it emits more than 200,000 times the energy that Sol does. The star's intrinsic brightness results in an [[absolute magnitude]] of around -6, but the sheer distance to the star along with an interveneing dust cloud dims this to +5.43.<ref name=illinois/> The star rotates slowly with an equitorial speed of 50 km/s which means it takes 170 days for 6 Cassiopeiae to complete one revolution. It also produces a variable but strong [[stellar wind]] that can ejects matter from the star at speeds up to 180 km/s.
The star is known to be a type of pulsating [[variable star]] known as an "Alpha Cygni" type.<ref>
{{cite journal
|last1=Samus |first1=N. N.
|last2=Kazarovets |first2=E. V.
|last3=Durlevich |first3=O. V.
|last4=Kireeva |first4=N. N.
|last5=Pastukhova |first5=E. N.
|last6= |first6=
|last7= |first7=
|last8= |first8=
|last9= |first9=
|display-authors=3
|title=General Catalogue of Variable Stars: Version GCVS 5.1
|journal=Astronomy Reports
|volume=61
|issue=1|page=80-88|date=2017
|doi=10.1134/S1063772917010085
|bibcode=2017ARep...61...80S
|ref=harv
}}
</ref><ref>
{{cite journal
|last1=ESA |first1=
|display-authors=3
|title=The HIPPARCOS and TYCHO catalogues. Astrometric and photometric star catalogues derived from the ESA HIPPARCOS Space Astrometry Mission
|journal=ESA Special Publication
|volume=1200
|issue=|page=|date=1997
|doi=
|bibcode=1997ESASP1200.....E
|ref=harv
}}
</ref>The star varies in brightess only by 0.09 magnitudes with a period of 0.077 days or a little under two hours.<ref name=universeguide/><ref>{{cite web|url=http://www.sai.msu.su/gcvs/cgi-bin/search.cgi?search=V566+Cas|title=V566 Cas|accessdate=December 29, 2021|publisher=sai.msu.su}}</ref> The star is not known to possess any [[exoplanet]]s.
==References==
{{reflist}}
{{Stars}}
[[Category:Astronomy]]
[[Category:Stars]]