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7 de fevereiro de 2025

Nebulosa Dumbbell: A Nebulosa de Uma Anã Branca

Parecendo uma imagem saída do jogo Will Wright, a M27 ou NGC6853 é uma nebulosa planetária localizada na constelação de Vulpecula a 1360 anos-luz de distância da Terra. A estrela central, uma anã branca, é maior do que as outras anãs brancas conhecidas no universo. Também conhecida pelo nome de Nebulosa Dumbbell, ela possui certas saliências marcadas por uma região central com espinhas negras e brilhantes associadas com caudas escuras. As saliências variam em aparência desde objetos simétricos com caudas até objetos irregulares sem cauda. Parecida com a Nebulosa da Hélice e com a Nebulosa do Esquimó, a ponta das saliências possuem cúspides luminosos locais.

Fonte:

http://www.stumbleupon.com/su/1yWPaQ/www.dailygalaxy.com/my_weblog/2010/03/image-of-the-day-the-barbell-nebula.html/r:t

Sérgio Sacani

Formado em geofísica pelo IAG da USP, mestre em engenharia do petróleo pela UNICAMP e doutor em geociências pela UNICAMP. Sérgio está à frente do Space Today, o maior canal de notícias sobre astronomia do Brasil.

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