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this is a large-amplitude variable star, quoting a single value for the apparent magnitude is meaningless
replace Simbad refs with underlying journal citations, fix minus signs, update to Gaia EDR3 astrometry
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{{Starbox observe
{{Starbox observe
| epoch=J2000
| epoch=J2000
| ra={{RA|13|48|57.0416}}<ref name=edr3/>
| ra={{RA|13|48|57.0435}}<ref name="SIMBAD">{{cite web |url =http://simbad.u-strasbg.fr/simbad/sim-id?Ident=R+CVn&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id|title = R Canum Venaticorum|work = SIMBAD Astronomical Database|publisher=Centre de Données astronomiques de Strasbourg|accessdate = 26 June 2014}}</ref>
| dec={{DEC|+39|32|33.191}}<ref name="SIMBAD"/>
| dec={{DEC|+39|32|33.174}}<ref name=edr3/>
| appmag_v=6.5 - 12.9<ref name="AAVSO"/>
| appmag_v=6.5 - 12.9<ref name="AAVSO"/>
| constell=[[Canes Venatici]] }}
| constell=[[Canes Venatici]]
}}
{{Starbox character
{{Starbox character
| class=M6.5-9e<ref name="SIMBAD"/>
| class=M5.5e-M9e<ref name="AAVSO"/>
| b-v=
| b-v=2.60<ref name="SIMBAD"/>
| u-b=
| u-b=
| variable=[[Mira variable]]<ref name="AAVSO"/> }}
| variable=[[Mira variable|Mira]]<ref name="AAVSO"/>
}}
{{Starbox astrometry
{{Starbox astrometry
| radial_v=-6.80<ref name="SIMBAD"/>
| radial_v=−6.80<ref name=rv/>
| prop_mo_ra=1.10<ref name="SIMBAD"/>
| prop_mo_ra=−1.115<ref name=edr3/>
| prop_mo_dec=-6.79<ref name="SIMBAD"/>
| prop_mo_dec=−5.148<ref name=edr3/>
| parallax=1.04
| parallax=2.1711
| p_error=1.32
| p_error=0.1262
| parallax_footnote=<ref name="SIMBAD"/>
| parallax_footnote=<ref name=edr3/>
| absmag_v=&minus;2.52 }}
| absmag_v=−2.52{{cn}}
}}
{{Starbox catalog
{{Starbox catalog
| names= [[Variable star designation|R]]&nbsp;CVn, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]]&nbsp;63763, [[Guide Star Catalog|GSC]]&nbsp;03027-00252, [[Bonner Durchmusterung|BD]]+40°2694, [[Henry Draper Catalogue|HD]]&nbsp;120499, [[Dearborn Observatory|DO]]&nbsp;14814, [[Boss General Catalogue|GC]]&nbsp;18671, [[Hipparcos catalogue|HIP]]&nbsp;67410, [[Bright Star Catalogue|HR]] 5199
| names= [[Variable star designation|R]]&nbsp;CVn, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]]&nbsp;63763, [[Guide Star Catalog|GSC]]&nbsp;03027-00252, [[Bonner Durchmusterung|BD]]+40°2694, [[Henry Draper Catalogue|HD]]&nbsp;120499, [[Dearborn Observatory|DO]]&nbsp;14814, [[Boss General Catalogue|GC]]&nbsp;18671, [[Hipparcos catalogue|HIP]]&nbsp;67410, [[Bright Star Catalogue|HR]] 5199
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{{Starbox end}}
{{Starbox end}}


'''R Canum Venaticorum''' is a [[Mira variable]] star in the constellation [[Canes Venatici]]. It ranges between magnitudes 6.5 and 12.9 over a period of approximately 329 days.<ref name="AAVSO">{{cite web|url=http://www.aavso.org/vsx/index.php?view=detail.top&oid=5018 |title=R Canum Venaticorum|author=VSX|date=4 January 2010|work=AAVSO Website|publisher=[[American Association of Variable Star Observers]]|accessdate=26 June 2014}}</ref>
'''R Canum Venaticorum''' is a [[Mira variable]] star in the constellation [[Canes Venatici]]. It ranges between magnitudes 6.5 and 12.9 over a period of approximately 329 days.<ref name="AAVSO"/>


==References==
==References==
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<ref name="aavso">{{cite web |title=Download Data |url=https://www.aavso.org/data-download |website=aavso.org |publisher=AAVSO |access-date=1 October 2021}}</ref>
<ref name="aavso">{{cite web |title=Download Data |url=https://www.aavso.org/data-download |website=aavso.org |publisher=AAVSO |access-date=1 October 2021}}</ref>

<ref name="AAVSO">{{cite web|url=http://www.aavso.org/vsx/index.php?view=detail.top&oid=5018 |title=R Canum Venaticorum|author=VSX|date=4 January 2010|work=AAVSO Website|publisher=[[American Association of Variable Star Observers]]|accessdate=26 June 2014}}</ref>

<ref name=edr3>{{cite Gaia EDR3|1496795041799526400}}</ref>

<ref name=rv>{{Cite journal | doi=10.1134/S1063773706110065 | bibcode=2006AstL...32..759G| title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system| journal=Astronomy Letters| volume=32| issue=11| pages=759–771| year=2006| last1=Gontcharov| first1=G. A.|arxiv = 1606.08053 | s2cid=119231169}}</ref>


}}
}}

Revision as of 13:53, 6 March 2022

R Canum Venaticorum

The visual band light curve of R Canum Venaticorum, from AAVSO data[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Canes Venatici
Right ascension 13h 48m 57.0416s[2]
Declination +39° 32′ 33.174″[2]
Apparent magnitude (V) 6.5 - 12.9[3]
Characteristics
Spectral type M5.5e-M9e[3]
Variable type Mira[3]
Astrometry
Radial velocity (Rv)−6.80[4] km/s
Proper motion (μ) RA: −1.115[2] mas/yr
Dec.: −5.148[2] mas/yr
Parallax (π)2.1711 ± 0.1262 mas[2]
Distance1,500 ± 90 ly
(460 ± 30 pc)
Absolute magnitude (MV)−2.52[citation needed]
Other designations
R CVn, SAO 63763, GSC 03027-00252, BD+40°2694, HD 120499, DO 14814, GC 18671, HIP 67410, HR 5199
Database references
SIMBADdata

R Canum Venaticorum is a Mira variable star in the constellation Canes Venatici. It ranges between magnitudes 6.5 and 12.9 over a period of approximately 329 days.[3]

References

  1. ^ "Download Data". aavso.org. AAVSO. Retrieved 1 October 2021.
  2. ^ a b c d e Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  3. ^ a b c d VSX (4 January 2010). "R Canum Venaticorum". AAVSO Website. American Association of Variable Star Observers. Retrieved 26 June 2014.
  4. ^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169.


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