| dbo:abstract |
W Canis Majoris (W CMa) is a carbon star in the constellation Canis Major. A cool star, it has a surface temperature of around 2,900 K and a radius 234 times that of the Sun, with a bolometric absolute magnitude of −4.13 and distance estimated at 443 or 445 parsecs (1,444–1,450 light-years) based on bolometric magnitude or radius. The Gaia Data Release 2 parallax of 1.8049±0.1454 milliarcseconds implies a distance of about 555 parsecs. W CMa is classified as a slow irregular variable star. Detailed analyses have found only very weak and probably spurious periods of approximately a month. It is a carbon star, an asymptotic giant branch star where carbon and s-process elements have been dredged up to the surface during thermal pulses of the helium-burning shell. (en) W Canis Majoris är en halvregelbunden variabel av SR-typ i stjärnbilden Stora hunden. Stjärnan varierar mellan magnitud +6,27 och 7,09 (fotografisk magnitud) med en period av 160 dygn. (sv) W Большого Пса (лат. W Canis Majoris), HD 54361 — одиночная переменная звезда в созвездии Большого Пса на расстоянии приблизительно 1807 световых лет (около 554 парсеков) от Солнца. Видимая звёздная величина звезды — от +6,98m до +6,39m. (ru) |
| dbo:thumbnail |
wiki-commons:Special:FilePath/WCMaLightCurve.png?width=300 |
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40222481 (xsd:integer) |
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5638 (xsd:nonNegativeInteger) |
| dbo:wikiPageRevisionID |
1059291966 (xsd:integer) |
| dbo:wikiPageWikiLink |
dbr:Canis_Major dbr:All_Sky_Automated_Survey dbr:Durchmusterung dbr:Light_curve dbc:Asymptotic-giant-branch_stars dbc:Canis_Major dbc:Durchmusterung_objects dbc:Henry_Draper_Catalogue_objects dbc:Hipparcos_objects dbc:Objects_with_variable_star_designations dbc:Slow_irregular_variables dbr:Constellation dbr:S-process dbr:Light-year dbr:Star dbr:Parallax dbr:Dredge-up dbr:Absolute_magnitude dbr:Parsec dbr:Carbon_star dbr:Asymptotic_giant_branch dbr:International_Celestial_Reference_System dbr:J2000.0 dbr:Bolometric dbr:Sun dbc:Carbon_stars dbr:Smithsonian_Astrophysical_Observatory_Star_Catalog dbr:Slow_irregular_variable dbr:Photometric_system dbr:Variable_star_designation dbr:Gaia_Data_Release_2 dbr:Helium-burning dbr:Henry_Draper_catalog dbr:Hipparcos_catalog dbr:File:WCMaLightCurve.png |
| dbp:appmagV |
6.350000 (xsd:double) |
| dbp:bV |
+2.55 (en) |
| dbp:class |
C6,3 (en) |
| dbp:constell |
dbr:Canis_Major |
| dbp:epoch |
dbr:J2000.0 |
| dbp:equinox |
J2000.0 (en) |
| dbp:gravity |
0 (xsd:integer) |
| dbp:luminosity |
3560 (xsd:integer) |
| dbp:pError |
0.145400 (xsd:double) |
| dbp:parallax |
1.804900 (xsd:double) |
| dbp:propMoDec |
2.280000 (xsd:double) |
| dbp:propMoRa |
−6.518 (en) |
| dbp:radialV |
23 (xsd:integer) |
| dbp:radius |
234 (xsd:integer) |
| dbp:temperature |
2900 (xsd:integer) |
| dbp:variable |
dbr:Slow_irregular_variable |
| dbp:wikiPageUsesTemplate |
dbt:Reflist dbt:Short_description dbt:Starbox_astrometry dbt:Starbox_begin dbt:Starbox_catalog dbt:Starbox_character dbt:Starbox_detail dbt:Starbox_end dbt:Starbox_image dbt:Starbox_observe dbt:Starbox_reference dbt:Stars_of_Canis_Major dbt:Val dbt:DEC dbt:RA |
| dct:subject |
dbc:Asymptotic-giant-branch_stars dbc:Canis_Major dbc:Durchmusterung_objects dbc:Henry_Draper_Catalogue_objects dbc:Hipparcos_objects dbc:Objects_with_variable_star_designations dbc:Slow_irregular_variables dbc:Carbon_stars |
| gold:hypernym |
dbr:Star |
| rdf:type |
owl:Thing dbo:Place dbo:Location schema:Place dbo:CelestialBody yago:WikicatC-typeStars yago:WikicatObjectsNamedWithVariableStarDesignations yago:CelestialBody109239740 yago:NaturalObject100019128 yago:Object100002684 yago:PhysicalEntity100001930 yago:WikicatHenryDraperCatalogueObjects dbo:Star yago:Star109444100 yago:Whole100003553 |
| rdfs:comment |
W Canis Majoris är en halvregelbunden variabel av SR-typ i stjärnbilden Stora hunden. Stjärnan varierar mellan magnitud +6,27 och 7,09 (fotografisk magnitud) med en period av 160 dygn. (sv) W Большого Пса (лат. W Canis Majoris), HD 54361 — одиночная переменная звезда в созвездии Большого Пса на расстоянии приблизительно 1807 световых лет (около 554 парсеков) от Солнца. Видимая звёздная величина звезды — от +6,98m до +6,39m. (ru) W Canis Majoris (W CMa) is a carbon star in the constellation Canis Major. A cool star, it has a surface temperature of around 2,900 K and a radius 234 times that of the Sun, with a bolometric absolute magnitude of −4.13 and distance estimated at 443 or 445 parsecs (1,444–1,450 light-years) based on bolometric magnitude or radius. The Gaia Data Release 2 parallax of 1.8049±0.1454 milliarcseconds implies a distance of about 555 parsecs. (en) |
| rdfs:label |
W Canis Majoris (en) W Большого Пса (ru) W Canis Majoris (sv) |
| owl:sameAs |
freebase:W Canis Majoris wikidata:W Canis Majoris dbpedia-ru:W Canis Majoris dbpedia-sv:W Canis Majoris https://global.dbpedia.org/id/VLnB yago-res:W Canis Majoris |
| prov:wasDerivedFrom |
wikipedia-en:W_Canis_Majoris?oldid=1059291966&ns=0 |
| foaf:depiction |
wiki-commons:Special:FilePath/WCMaLightCurve.png |
| foaf:isPrimaryTopicOf |
wikipedia-en:W_Canis_Majoris |
| foaf:name |
W Canis Majoris (en) |
| is dbo:wikiPageWikiLink of |
dbr:Canis_Major dbr:List_of_stars_in_Canis_Major |
| is foaf:primaryTopic of |
wikipedia-en:W_Canis_Majoris |
