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WR 136 is a Wolf–Rayet star located in the constellation Cygnus. It is in the center of the Crescent Nebula. Its age is estimated to be around 4.7 million years and it is nearing the end of its life. Within a few hundred thousand years, it is expected to explode as a supernova. According to recent estimations, WR 136 is 600,000 times brighter than the Sun, 21 times more massive, and 5.1 times larger. Its surface temperature is around 70,000 kelvins.

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  • WR 136 (ca)
  • WR 136 (es)
  • WR 136 (it)
  • WR 136 (ru)
  • WR 136 (en)
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  • WR 136 è una stella della costellazione del Cigno, di magnitudine apparente +7,5 situata nel centro di NGC 6888, (la Nebulosa Crescente). Si trova a circa 4700 anni luce dal Sistema solare. (it)
  • WR 136 (другие обозначения — V1770 Cyg, AG+38 1977, GSC 03151-01765, BD+37 3821, HD 192163, HIC 99546, HIP 99546, GC 28056, SAO 69592, IRAS 20102+3812, 2MASS J20120654+3821178) — звезда класса Вольфа-Райе в созвездии Лебедя. Звезда находится в центре туманности NGC 6888 («Туманность Полумесяц») на расстоянии около 6 700 световых лет от Земли. Звезда WR 136 в 5,10 раз больше и в 21 раз тяжелее Солнца, температура её поверхности около 70 800 К. Светимость звезды WR 136 примерно в 600 000 раз больше Солнца, а её возраст оценивается в 4,7 млн лет. Предположительно, в ближайшие нескольких миллионов лет WR 136 вспыхнет, как сверхновая. (ru)
  • WR 136 (V1770 Cygni / HD 192163 / HIP 99546) és un estel a la constel·lació del Cigne, de magnitud aparent +7,48, situada al centre de la nebulosa Mitjalluna. S'hi troba a uns 4.110 anys llum (1260 parsecs) de distància del sistema solar. Recentment s'ha proposat que WR 136 pot ser un estel binari. La seva companya, de tipus espectral K o M, empraria una mica més de 5 dies a completar una òrbita al voltant de l'estel principal, sent en tal cas el sistema un possible precursor d'una binària de baixa massa emissora de raigs X (LMXB en anglès). (ca)
  • WR 136 (V1770 Cygni / HD 192163 / HIP 99546)​ es una estrella en la constelación de Cygnus, el cisne, de magnitud aparente +7,48, situada en el centro de la nebulosa Medialuna. Se encuentra a unos 4110 años luz (1260 pársecs) de distancia del sistema solar.​ Recientemente se ha propuesto que WR 136 puede ser una estrella binaria.Su compañera, de tipo espectral K o M, emplearía algo más de 5 días en completar una órbita alrededor de la estrella principal, siendo en tal caso el sistema un posible precursor de una binaria de rayos X de baja masa (LMXB en inglés).​ (es)
  • WR 136 is a Wolf–Rayet star located in the constellation Cygnus. It is in the center of the Crescent Nebula. Its age is estimated to be around 4.7 million years and it is nearing the end of its life. Within a few hundred thousand years, it is expected to explode as a supernova. According to recent estimations, WR 136 is 600,000 times brighter than the Sun, 21 times more massive, and 5.1 times larger. Its surface temperature is around 70,000 kelvins. (en)
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  • WR 136 (en)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/NGC_6888_HOO_By_Don_Christopher_Deaver.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/V1770CygLightCurve.png
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