英语词汇“dumbbell nebula”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	dumbbell nebula
释义	Dumbbell nebula Dumbbell nebula (M27; NGC 6853) A planetary nebula in the constellation Vulpecula. It has an hourglass shape (330 × 900 arc seconds) and a magnitude of 7.6. Dumbbell Nebula [′dəm‚bel ′neb·yə·lə] (astronomy) A planetary nebula of large apparent diameter and low surface brightness in the constellation Vulpecula, about 220 parsecs (4.2 × 10¹⁵ miles or 6.8 × 10¹⁵ kilometers) away.
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Dumbbell nebula