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{{Starbox catalog|names=Mirzam, Murzim, Mirza,<ref name=allen1899/> [[Flamsteed designation|2]]&nbsp;Canis Majoris, [[Harvard Revised catalogue|HR]]&nbsp;2294, [[Bonner Durchmusterung|BD]]&minus;17°1467, [[Henry Draper catalogue|HD]]&nbsp;44743, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]]&nbsp;151428, [[Fifth Fundamental Catalogue|FK5]]&nbsp;243, [[Hipparcos catalogue|HIP]]&nbsp;30324, GC&nbsp;8223, CCDM&nbsp;06227-1757<ref name=SIMBAD/>}}
{{Starbox catalog|names=Mirzam, Murzim, Mirza,<ref name=allen1899/> [[Flamsteed designation|2]]&nbsp;Canis Majoris, [[Harvard Revised catalogue|HR]]&nbsp;2294, [[Bonner Durchmusterung|BD]]&minus;17°1467, [[Henry Draper catalogue|HD]]&nbsp;44743, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]]&nbsp;151428, [[Fifth Fundamental Catalogue|FK5]]&nbsp;243, [[Hipparcos catalogue|HIP]]&nbsp;30324, GC&nbsp;8223, CCDM&nbsp;06227-1757<ref name=SIMBAD/>}}
{{Starbox reference|Simbad=Beta+CMa}}
{{Starbox reference|Simbad=Beta+CMa}}
{{Starbox end}}'''Beta Canis Majoris,''' also called '''Mirzam''',<ref name="IAU-CSN" /> is a [[star]] in the southern [[constellation]] of [[Canis Major]], the "Great Dog". It is around 500&nbsp;[[Light-year|light-years]] (150&nbsp;[[Parsec|parsecs]]) from the [[Sun]].<ref name="aaa474_2_653" /> In the modern constellation it looks like it is in the dog's front leg.
{{Starbox end}}'''Beta Canis Majoris,''' also called '''Mirzam''',<ref name="IAU-CSN" /> is a [[star]] in the southern [[constellation]] of [[Canis Major]], the "Great Dog". It is around 500&nbsp;[[Light-year|light-years]] (150&nbsp;[[Parsec|parsecs]]) from the [[Sun]].<ref name="aaa474_2_653" /> In the modern constellation it looks like it is in the dog's front leg.{{reflist|30em|refs=<ref name=flag>{{cite web
|title=Astronomy of the Brazilian Flag
|url=https://www.fotw.info/flags/br_astro.html
|publisher=FOTW Flags Of The World website
|url-status=dead
|archive-url=https://web.archive.org/web/20090628101130/https://www.fotw.info/flags/br_astro.html
|archive-date=2009-06-28
}}</ref>


<ref name=fossati>{{Cite journal |last=Fossati |first=L. |last2=Castro |first2=N. |last3=Morel |first3=T. |last4=Langer |first4=N. |last5=Briquet |first5=M. |last6=Carroll |first6=T. A. |last7=Hubrig |first7=S. |last8=Nieva |first8=M. F. |last9=Oskinova |first9=L. M. |last10=Przybilla |first10=N. |last11=Schneider |first11=F. R. N. |last12=Schöller |first12=M. |last13=Simón-Díaz |first13=S. |last14=Ilyin |first14=I. |last15=de Koter |first15=A. |date=2015-02-01 |title=B fields in OB stars (BOB): on the detection of weak magnetic fields in the two early B-type stars β CMa and ɛ CMa. Possible lack of a "magnetic desert" in massive stars |bibcode=2015A&A...574A..20F |arxiv=1411.6490 |journal=Astronomy and Astrophysics |volume=574 |pages=A20 |doi=10.1051/0004-6361/201424986 |issn=0004-6361}}</ref>
== References ==

{{Reflist}}
<ref name=Welsh>{{Cite journal|last=Welsh|first=Barry Y.|date=1991|title=The interstellar tunnel of neutral-free gas toward Beta Canis Majoris|url=http://adsabs.harvard.edu/doi/10.1086/170074|journal=The Astrophysical Journal|language=en|volume=373|pages=556|bibcode=1991ApJ...373..556W|doi=10.1086/170074|issn=0004-637X}}</ref>

<ref name=ChineseSky>{{cite web|url=http://idp.bl.uk/education/astronomy_researchers/index.a4d#section7.1|title=The Dunhuang Chinese Sky: A Comprehensive Study Of The Oldest Known Star Atlas|author=Jean-Marc Bonnet-Bidaud|author2=Dr Françoise Praderie|author3=Dr Susan Whitfield|author3-link=Susan Whitfield|name-list-style=amp|date=16 June 2009|url-status=dead|archive-url=https://web.archive.org/web/20140402021617/http://idp.bl.uk/education/astronomy_researchers/index.a4d#section7.1|archive-date=2 April 2014}}</ref>

<ref name=lcsd>{{in lang|zh}} [http://www.lcsd.gov.hk/CE/Museum/Space/Research/StarName/c_research_chinengstars_m.htm 香港太空館 - 研究資源 - 亮星中英對照表] {{webarchive|url=https://web.archive.org/web/20110130063012/http://www.lcsd.gov.hk/CE/Museum/Space/Research/StarName/c_research_chinengstars_m.htm |date=2011-01-30 }}, Hong Kong Space Museum. Accessed on line November 23, 2010.</ref>

<ref name=zh>{{in lang|zh}} ''中國星座神話'', written by 陳久金. Published by 台灣書房出版有限公司, 2005, {{ISBN|978-986-7332-25-7}}.</ref>

<ref name="WGSN1">{{cite web | url=http://www.pas.rochester.edu/~emamajek/WGSN/WGSN_bulletin1.pdf | title=Bulletin of the IAU Working Group on Star Names, No. 1 |access-date=28 July 2016}}</ref>

<ref name="WGSN">{{cite web | url=https://www.iau.org/science/scientific_bodies/working_groups/280/ | title=IAU Working Group on Star Names (WGSN)|access-date=22 May 2016}}</ref>

<ref name="IAU-CSN">{{cite web | url=http://www.pas.rochester.edu/~emamajek/WGSN/IAU-CSN.txt | title=IAU Catalog of Star Names |access-date=28 July 2016}}</ref>

<ref name=MNRAS369>{{cite journal|bibcode=2006MNRAS.369..171S|title=Photometric studies of three multiperiodic β Cephei stars: β CMa, 15 CMa and KZ Mus|journal=Monthly Notices of the Royal Astronomical Society|volume=369|issue=1|pages=171–181|last1=Shobbrook|first1=R. R.|last2=Handler|first2=G.|last3=Lorenz|first3=D.|last4=Mogorosi|first4=D.|year=2006|doi=10.1111/j.1365-2966.2006.10289.x|doi-access=free |arxiv = astro-ph/0603754 |s2cid=18593836}}</ref>

<ref name=gcvs>{{cite journal|bibcode=2009yCat....102025S|title=VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007–2013)|journal=VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S|volume=1|pages=02025|last1=Samus|first1=N. N.|last2=Durlevich|first2=O. V.|year=2009|display-authors=etal}}</ref>

<ref name=IBVS>{{cite journal|bibcode=1996IBVS.4313....1B|title=The Pulsation Frequencies of beta CMa|journal=Information Bulletin on Variable Stars|volume=4313|pages=1|last1=Balona|first1=L. A.|last2=Bregman|first2=L.|last3=Letsapa|first3=B. A.|last4=Magoro|first4=B. T.|last5=Walsh|first5=S. E.|year=1996}}</ref>

<ref name=HIPCurve>{{cite web |title=Light Curve |url=https://www.cosmos.esa.int/web/hipparcos/java-tools/light-curve |website=Hipparcos ESA |publisher=ESA |access-date=17 February 2022}}</ref>

<ref name=aaa474_2_653>{{citation | first=F. | last=van Leeuwen |date=November 2007 | title=Validation of the new Hipparcos reduction | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 |arxiv = 0708.1752 | s2cid=18759600 }}</ref>

<ref name=gcsrv53>{{citation | last=Wilson | first=Ralph Elmer | date=1953 | title=General Catalogue of Stellar Radial Velocities | journal=Washington | bibcode=1953GCRV..C......0W }}</ref>

<ref name=apj573_1_359>{{citation | display-authors=1| last1=Abt | first1=Helmut A. | last2=Levato | first2=Hugo | last3=Grosso | first3=Monica | title=Rotational Velocities of B Stars | journal=The Astrophysical Journal | volume=573 | issue=1 | pages=359–365 |date=July 2002 | doi=10.1086/340590 | bibcode=2002ApJ...573..359A | doi-access=free }}</ref>

<ref name=mnassa31_69>{{citation | title=UBV Photometry of Some Very Bright Stars | last1=Cousins | first1=A. W. J. | journal=Monthly Notes of the Astronomical Society of Southern Africa | volume=31 | page=69 | date=1972 | bibcode=1972MNSSA..31...69C }}</ref>

<ref name=schultz2019>{{citation |bibcode=2019MNRAS.485.1508S |title=The magnetic early B-type Stars II: Stellar atmospheric parameters in the era of Gaia |last1=Shultz |first1=M. E. |last2=Wade |first2=G. A. |last3=Rivinius |first3=Th |last4=Alecian |first4=E. |last5=Neiner |first5=C. |last6=Petit |first6=V. |last7=Wisniewski |first7=J. P. |author8=MiMeS Collaboration |author9=BinaMIcS Collaboration |journal=Monthly Notices of the Royal Astronomical Society |year=2019 |volume=485 |issue=2 |page=1508 |doi=10.1093/mnras/stz416 |doi-access=free |arxiv=1902.02713 |s2cid=119463660 }}</ref>

<ref name=aaa459_2_589>{{citation | display-authors=1 | last1=Mazumdar | first1=A. | last2=Briquet | first2=M. | last3=Desmet | first3=M. | last4=Aerts | first4=C. | title=An asteroseismic study of the β Cephei star β Canis Majoris | journal=Astronomy and Astrophysics | volume=459 | issue=2 | pages=589–596 |date=November 2006 | doi=10.1051/0004-6361:20064980 | bibcode=2006A&A...459..589M |arxiv = astro-ph/0607261 | s2cid=11807580 }}</ref>

<ref name=SIMBAD>{{citation | title=V* bet CMa -- Variable Star of beta Cep type | work=SIMBAD | publisher=[[Centre de Données astronomiques de Strasbourg]] | url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=Beta+Canis+Majoris | access-date=2012-01-02 }}</ref>

<ref name=allen1899>{{citation | first1=Richard Hinckley | last1=Allen | title=Star-names and their meanings | journal=New York | date=1899 | pages=129–130 | url=https://books.google.com/books?id=5xQuAAAAIAAJ&pg=PA129 | bibcode=1899sntm.book.....A }}</ref>

<ref name=csiro>{{citation |title=The Colour of Stars |date=December 21, 2004 |work=Australia Telescope, Outreach and Education |publisher=[[Commonwealth Scientific and Industrial Research Organisation]] |url=http://outreach.atnf.csiro.au/education/senior/astrophysics/photometry_colour.html |access-date=2012-01-16 |url-status=dead |archive-url=https://web.archive.org/web/20120318151427/http://outreach.atnf.csiro.au/education/senior/astrophysics/photometry_colour.html |archive-date=2012-03-18 }}</ref>}}

Revision as of 20:35, 11 September 2024

Beta Canis Majoris
Diagram showing star positions and boundaries of the Canis Major constellation and its surroundings
Location of β Canis Majoris (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Canis Major
Right ascension  06h 22m 41.98535s[1]
Declination −17° 57′ 21.3073″[1]
Apparent magnitude (V) 1.985[2] (1.97 - 2.01[3])
Characteristics
Spectral type B1 II-III[4]
U−B color index −0.99[2]
B−V color index −0.235[2]
Variable type β Cep[5]
Astrometry
Radial velocity (Rv)+33.7[6] km/s
Proper motion (μ) RA: −3.23[1] mas/yr
Dec.: −0.78[1] mas/yr
Parallax (π)6.62 ± 0.22[1] mas
Distance490 ± 20 ly
(151 ± 5 pc)
Absolute magnitude (MV)−4.1[7]
Details
Mass12 or 12.6[8] M☉
Radius7.4 or 8.2[8] R☉
Luminosity25,700+3,800
−3,300[9] L☉
Surface gravity (log g)3.78±0.08[8] cgs
Temperature24,700±300[9] K
Metallicity [Fe/H]0.04 ± 0.10[10] dex
Rotation13.6±1.2[8] days
Rotational velocity (v sin i)31 ± 5[10] km/s
Age12.2 or 13.8[8] Myr
Other designations
Mirzam, Murzim, Mirza,[11] 2 Canis Majoris, HR 2294, BD−17°1467, HD 44743, SAO 151428, FK5 243, HIP 30324, GC 8223, CCDM 06227-1757[12]
Database references
SIMBADdata

Beta Canis Majoris, also called Mirzam,[13] is a star in the southern constellation of Canis Major, the "Great Dog". It is around 500 light-years (150 parsecs) from the Sun.[1] In the modern constellation it looks like it is in the dog's front leg.

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357, S2CID 18759600
  2. ↑ 2.0 2.1 2.2 Cousins, A. W. J. (1972), "UBV Photometry of Some Very Bright Stars", Monthly Notes of the Astronomical Society of Southern Africa, 31: 69, Bibcode:1972MNSSA..31...69C
  3. ↑ Balona, L. A.; Bregman, L.; Letsapa, B. A.; Magoro, B. T.; Walsh, S. E. (1996). "The Pulsation Frequencies of beta CMa". Information Bulletin on Variable Stars. 4313: 1. Bibcode:1996IBVS.4313....1B.
  4. ↑ Abt, Helmut A.; et al. (July 2002), "Rotational Velocities of B Stars", The Astrophysical Journal, 573 (1): 359–365, Bibcode:2002ApJ...573..359A, doi:10.1086/340590
  5. ↑ Samus, N. N.; Durlevich, O. V.; 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: 02025. Bibcode:2009yCat....102025S.
  6. ↑ Wilson, Ralph Elmer (1953), "General Catalogue of Stellar Radial Velocities", Washington, Bibcode:1953GCRV..C......0W
  7. ↑ Shobbrook, R. R.; Handler, G.; Lorenz, D.; Mogorosi, D. (2006). "Photometric studies of three multiperiodic β Cephei stars: β CMa, 15 CMa and KZ Mus". Monthly Notices of the Royal Astronomical Society. 369 (1): 171–181. arXiv:astro-ph/0603754. Bibcode:2006MNRAS.369..171S. doi:10.1111/j.1365-2966.2006.10289.x. S2CID 18593836.
  8. ↑ 8.0 8.1 8.2 8.3 8.4 Fossati, L.; Castro, N.; Morel, T.; Langer, N.; Briquet, M.; Carroll, T. A.; Hubrig, S.; Nieva, M. F.; Oskinova, L. M.; Przybilla, N.; Schneider, F. R. N.; Schöller, M.; Simón-Díaz, S.; Ilyin, I.; de Koter, A. (2015-02-01). "B fields in OB stars (BOB): on the detection of weak magnetic fields in the two early B-type stars β CMa and ɛ CMa. Possible lack of a "magnetic desert" in massive stars". Astronomy and Astrophysics. 574: A20. arXiv:1411.6490. Bibcode:2015A&A...574A..20F. doi:10.1051/0004-6361/201424986. ISSN 0004-6361.
  9. ↑ 9.0 9.1 Shultz, M. E.; Wade, G. A.; Rivinius, Th; Alecian, E.; Neiner, C.; Petit, V.; Wisniewski, J. P.; MiMeS Collaboration; BinaMIcS Collaboration (2019), "The magnetic early B-type Stars II: Stellar atmospheric parameters in the era of Gaia", Monthly Notices of the Royal Astronomical Society, 485 (2): 1508, arXiv:1902.02713, Bibcode:2019MNRAS.485.1508S, doi:10.1093/mnras/stz416, S2CID 119463660
  10. ↑ 10.0 10.1 Mazumdar, A.; et al. (November 2006), "An asteroseismic study of the β Cephei star β Canis Majoris", Astronomy and Astrophysics, 459 (2): 589–596, arXiv:astro-ph/0607261, Bibcode:2006A&A...459..589M, doi:10.1051/0004-6361:20064980, S2CID 11807580
  11. ↑ Allen, Richard Hinckley (1899), "Star-names and their meanings", New York: 129–130, Bibcode:1899sntm.book.....A
  12. ↑ "V* bet CMa -- Variable Star of beta Cep type", SIMBAD, Centre de Données astronomiques de Strasbourg, retrieved 2012-01-02
  13. ↑ "IAU Catalog of Star Names". Retrieved 28 July 2016.

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