LVAAS - THE LEHIGH VALLEY AMATEUR ASTRONOMICAL SOCIETY: Promoting, Facilitating and Teaching Astronomy Since 1957

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Sunday, December 17 2017 @ 04:28 PM EST

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An extremely hot Wolf-Rayet star excites this faint wind-blown bubble nebula in a fine, dense starfield. Their very peculiar spectra show emission lines of a a stellar wind is ejecting matter into space at velocities between 1,000 and 3,000 kilometers p

  Image 178 of 181
Tuesday, June 09 2009 @ 09:33 PM EDT
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