Matches in DBpedia 2016-04 for { <http://wikidata.dbpedia.org/resource/Q18376509> ?p ?o }
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- Q18376509 subject Q10638.
- Q18376509 subject Q7465898.
- Q18376509 subject Q7465903.
- Q18376509 subject Q7724321.
- Q18376509 subject Q8173169.
- Q18376509 subject Q8393112.
- Q18376509 subject Q8691170.
- Q18376509 abstract "W Virginis is the prototype W Virginis variable, a subclass of the Cepheid variable stars. It is located in the constellation Virgo, and varies between magnitudes 9.46 and 10.75 over a period of approximately 17 days.There are variations in the light curve apparently due to multiple pulsation periods rather than inherent instabilities in the pulsation. The dominant pulsation mode has a period of 17.27134 days with a period decrease detected over a 75-year period.The pulsations cause changes in both temperature and size, leading to large changes in the luminosity and brightness. The maximum temperature occurs when the star is at its brightest visually, when the star is also at its smallest. The minimum temperature and maximum radius occur at around phase 0.5 when the brightness is decreasing and nearly at minimum. Because relatively more infrared radiation is produced when the star is cooler, the maximum brightness in the infrared occurs when the visual brightness is already decreasing, and the maximum bolometric luminosity occurs at around phase 0.25 around halfway from maximum to minimum visual brightness.W Virginis stars are old helium shell burning stars with masses less than the sun. They have supergiant spectral luminosity classes despite their modest masses and actual luminosities, because they are highly inflated evolved stars with very low surface gravities. W Virginis itself is typical, with a mass less than half the sun, pulsating between 20 and 50 times the sun's radius, and a luminosity that varies from less than a hundred L☉ to nearly a thousand L☉.".
- Q18376509 wikiPageWikiLink Q105902.
- Q18376509 wikiPageWikiLink Q10638.
- Q18376509 wikiPageWikiLink Q111130.
- Q18376509 wikiPageWikiLink Q11388.
- Q18376509 wikiPageWikiLink Q188593.
- Q18376509 wikiPageWikiLink Q555846.
- Q18376509 wikiPageWikiLink Q7465898.
- Q18376509 wikiPageWikiLink Q7465903.
- Q18376509 wikiPageWikiLink Q7724321.
- Q18376509 wikiPageWikiLink Q8173169.
- Q18376509 wikiPageWikiLink Q8393112.
- Q18376509 wikiPageWikiLink Q845735.
- Q18376509 wikiPageWikiLink Q8691170.
- Q18376509 wikiPageWikiLink Q8842.
- Q18376509 wikiPageWikiLink Q936076.
- Q18376509 wikiPageWikiLink Q984158.
- Q18376509 type Place.
- Q18376509 type CelestialBody.
- Q18376509 type Location.
- Q18376509 type Place.
- Q18376509 type Star.
- Q18376509 type Thing.
- Q18376509 comment "W Virginis is the prototype W Virginis variable, a subclass of the Cepheid variable stars. It is located in the constellation Virgo, and varies between magnitudes 9.46 and 10.75 over a period of approximately 17 days.There are variations in the light curve apparently due to multiple pulsation periods rather than inherent instabilities in the pulsation.".
- Q18376509 label "W Virginis".
- Q18376509 name "W Virginis".