About: WR 12

Facets (new session)
Description
Metadata
Settings
- Rule:
- Inverse Functional Properties:
- "Same As":

About: WR 12 Goto Sponge NotDistinct Permalink

An Entity of Type : dbo:Star, within Data Space : dbpedia.org associated with source document(s)
QRcode icon

http://dbpedia.org/describe/?url=http%3A%2F%2Fdbpedia.org%2Fresource%2FWR_12&graph=http%3A%2F%2Fdbpedia.org&graph=http%3A%2F%2Fdbpedia.org

WR 12 (V378 Velorum) is a spectroscopic binary in the constellation Vela. It is an eclipsing binary consisting of a Wolf-Rayet star and a luminous companion of unknown spectral type. The primary is one of the most luminous stars known. The system produces eclipses which dim the brightness of the star by 0.12 magnitudes every 24 days. The stars are detached and so it is classified as an Algol-type eclipsing binary. The inclination of the orbit has been estimated at 78.8° but a full orbital solution is not available because the secondary cannot be directly detected.

Attributes	Values
rdf:type	Thing place dbo:Location schema:Place celestial body star
rdfs:label	WR 12 (en)
rdfs:comment	WR 12 (V378 Velorum) is a spectroscopic binary in the constellation Vela. It is an eclipsing binary consisting of a Wolf-Rayet star and a luminous companion of unknown spectral type. The primary is one of the most luminous stars known. The system produces eclipses which dim the brightness of the star by 0.12 magnitudes every 24 days. The stars are detached and so it is classified as an Algol-type eclipsing binary. The inclination of the orbit has been estimated at 78.8° but a full orbital solution is not available because the secondary cannot be directly detected. (en)
foaf:name	WR 12 (en)
foaf:depiction
dcterms:subject	Algol variables Durchmusterung objects Objects with variable star designations Spectroscopic binaries 2MASS objects Vela (constellation) Wolf–Rayet stars
Wikipage page ID	52865501 (xsd:integer)
Wikipage revision ID	1124979500 (xsd:integer)
Link from a Wikipage to another Wikipage	Algol variable All Sky Automated Survey for SuperNovae Vela (constellation) Light curve List of most luminous stars Algol variables Durchmusterung objects Objects with variable star designations Spectroscopic binaries Constellation Cordoba Durchmusterung 2MASS 2MASS objects Emission line Vela (constellation) Wolf–Rayet stars Eclipsing binary Spectroscopic binary Wolf-Rayet star Photometric system Variable star designation
sameAs	WR 12 WR 12 WR 12 WR 12
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_orbit dbt:Starbox_reference dbt:Val dbt:DEC dbt:RA dbt:Stars_of_Vela
thumbnail	wiki-commons:Special:FilePath/V378VelLightCurve.png?width=300
absmag v	(en) −6.68 (en)
appmag v	10.780000 (xsd:double)
b-v	+0.56 (en)
class	28800.0 (second)
component	WR (en)
constell	Vela (constellation)
eccentricity	0 (xsd:integer)
epoch	J2000 (en)
inclination	78.800000 (xsd:double)
luminosity bolometric	851000 (xsd:integer)
mass	30 (xsd:integer)
p error	0.012900 (xsd:double)
parallax	0.175600 (xsd:double)
prop mo dec	+3.777 (en)
prop mo ra	−2.979 (en)
radius	16.380000 (xsd:double)
temperature	44700 (xsd:integer)
u-b	–0.39 (en)
variable	Algol variable Wolf-Rayet star
has abstract	WR 12 (V378 Velorum) is a spectroscopic binary in the constellation Vela. It is an eclipsing binary consisting of a Wolf-Rayet star and a luminous companion of unknown spectral type. The primary is one of the most luminous stars known. The spectrum of WR 12 is dominated by the broad emission lines of the primary Wolf-Rayet star. The lowest ionisation nitrogen emission lines are strongest, with NV lines being very weak. The HeI lines are stronger than the HeII lines. Unusually the hydrogen emission is stronger still, leading to a WN8h spectral class. CIV emission is almost undetectable. It has been suggested that the companion is a class O star, but its lines cannot be seen in the spectrum. The system produces eclipses which dim the brightness of the star by 0.12 magnitudes every 24 days. The stars are detached and so it is classified as an Algol-type eclipsing binary. The inclination of the orbit has been estimated at 78.8° but a full orbital solution is not available because the secondary cannot be directly detected. (en)
prov:wasDerivedFrom	wikipedia-en:WR_12?oldid=1124979500&ns=0
page length (characters) of wiki page	6701 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:WR_12
is Link from a Wikipage to another Wikipage of	List of stars in Vela V378 Vel V378 Velorum
is Wikipage redirect of	V378 Vel V378 Velorum
is foaf:primaryTopic of	wikipedia-en:WR_12

Faceted Search & Find service v1.17_git139 as of Feb 29 2024

Alternative Linked Data Documents: ODE Content Formats:

RDF

ODATA

Microdata

About

OpenLink Virtuoso version 08.03.3330 as of Mar 19 2024, on Linux (x86_64-generic-linux-glibc212), Single-Server Edition (61 GB total memory, 39 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software