About: WR 30a

Property	Value
dbo:abstract	WR 30a is a massive spectroscopic binary in the constellation Carina. The primary is an extremely rare star on the WO oxygen sequence and the secondary a massive class O star. It appears near the Carina Nebula but is much further away. (en)
dbo:thumbnail	wiki-commons:Special:FilePath/DSS_Image_of_Eta_Carinae_Nebula.jpg?width=300
dbo:wikiPageID	50829062 (xsd:integer)
dbo:wikiPageLength	16826 (xsd:nonNegativeInteger)
dbo:wikiPageRevisionID	1123865331 (xsd:integer)
dbo:wikiPageWikiLink	dbr:Carina_(constellation) dbr:Carina_Nebula dbr:Right_ascension dbr:Semi-major_axis dbc:Emission-line_stars dbc:Objects_with_variable_star_designations dbc:Spectroscopic_binaries dbr:Constellation dbr:Effective_temperature dbr:Galaxy dbr:Gamma-ray_burst dbr:Main_sequence dbr:Colliding-wind_binary dbr:Stellar_wind dbr:Supergiant dbr:WR_102 dbr:WR_142 dbr:WR_93b dbr:Nuclear_fusion dbr:J2000.0 dbr:Terminal_velocity dbc:Astronomical_events_in_the_near_future dbc:Carina_(constellation) dbc:Wolf–Rayet_stars dbr:Kelvin dbr:Supernova dbc:O-type_stars dbr:Spectroscopic_binary dbr:Guide_Star_Catalog dbr:Milky_Way dbr:Cerro_Tololo_Inter-American_Observatory dbr:Wolf–Rayet_star dbr:Stefan–Boltzmann_law dbr:Solar_wind dbr:List_of_supernova_candidates dbr:Giant_star dbr:Variable_star_designation dbr:Shock_front dbr:Helium_burning dbr:Sun_radius dbr:Spectral_classification dbr:WR_30 dbr:File:V574CarLightCurve.png
dbp:absmagV	(en) −5.39 (en)
dbp:appmagV	12.730000 (xsd:double)
dbp:bV	+1.04 (en)
dbp:class	WO4 + O5 (en)
dbp:component	O (en) WR (en)
dbp:constell	dbr:Carina_(constellation)
dbp:eccentricity	0.200000 (xsd:double)
dbp:epoch	dbr:J2000.0
dbp:equinox	dbr:J2000.0
dbp:inclination	20 (xsd:integer)
dbp:k	25 (xsd:integer) 189 (xsd:integer)
dbp:luminosity	195000 (xsd:integer)
dbp:mass	7.500000 (xsd:double) 40 (xsd:integer)
dbp:name	O (en)
dbp:pError	0.009900 (xsd:double)
dbp:parallax	0.120100 (xsd:double)
dbp:periodUnitless	399081.6
dbp:primary	WR (en)
dbp:propMoDec	2.842000 (xsd:double)
dbp:propMoRa	−5.642 (en)
dbp:radius	0.880000 (xsd:double)
dbp:simbad	WR+30a (en)
dbp:temperature	129500 (xsd:integer)
dbp:type	dbr:Wolf–Rayet_star
dbp:uB	−0.22 (en)
dbp:variable	WR (en)
dbp:wikiPageUsesTemplate	dbt:Efn dbt:Notelist dbt:Reflist dbt:Short_description dbt:Smallcaps dbt:Solar_luminosity dbt:Solar_mass dbt:Solar_radius 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_orbit dbt:Starbox_reference dbt:Val dbt:DEC dbt:Location_mark dbt:RA dbt:Stars_of_Carina
dcterms:subject	dbc:Emission-line_stars dbc:Objects_with_variable_star_designations dbc:Spectroscopic_binaries dbc:Astronomical_events_in_the_near_future dbc:Carina_(constellation) dbc:Wolf–Rayet_stars dbc:O-type_stars
rdf:type	owl:Thing dbo:Place dbo:Location schema:Place dbo:CelestialBody dbo:Star
rdfs:comment	WR 30a is a massive spectroscopic binary in the constellation Carina. The primary is an extremely rare star on the WO oxygen sequence and the secondary a massive class O star. It appears near the Carina Nebula but is much further away. (en)
rdfs:label	WR 30a (en)
owl:sameAs	yago-res:WR 30a wikidata:WR 30a https://global.dbpedia.org/id/2M5fv
prov:wasDerivedFrom	wikipedia-en:WR_30a?oldid=1123865331&ns=0
foaf:depiction	wiki-commons:Special:FilePath/Red_circle.svg wiki-commons:Special:FilePath/DSS_Image_of_Eta_Carinae_Nebula.jpg wiki-commons:Special:FilePath/V574CarLightCurve.png
foaf:isPrimaryTopicOf	wikipedia-en:WR_30a
foaf:name	WR 30a (en)
is dbo:wikiPageRedirects of	dbr:V574_Carinae
is dbo:wikiPageWikiLink of	dbr:List_of_hottest_stars dbr:WR_102 dbr:WR_142 dbr:WR_93b dbr:List_of_stars_in_Carina dbr:List_of_supernova_candidates dbr:V574_Carinae
is foaf:primaryTopic of	wikipedia-en:WR_30a