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NGC6785 \"The Bubble\" |
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| About this picture: |
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A star 40 times more massive than the Sun is blowing a giant bubble of material into space. In this colorful picture, my telescope has captured a glimpse of the expanding bubble, dubbed the Bubble Nebula (NGC 7635). The beefy star [lower center] is embedded in the bright blue bubble. The stellar powerhouse is so hot that it is quickly shedding material into space. The dense gas surrounding the star is shaping the castoff material into a bubble. The bubble's surface is not smooth like a soap bubble's. Its rippled appearance is due to encounters with gases of different thickness. The nebula is 6 light-years wide and is expanding at 4 million miles per hour (7 million kilometers per hour). The nebula is 7,100 light-years from Earth in the constellation Cassiopeia. Scope: 12" LX200 OTA @ f6.3 Mount: MI250 Camera: SBIG ST200XM,CFW10 Astrodon Gen II filters Guiding: SSautoguider with Maxim Dl. LLRGB Ha image, L= 20X10 min. Ha= 20X10 min Bin 1X. RGB= 20X5 min. Bin 2X. Total exposure time = 11 hrs 40 min. Images acquired with Maximum Dl, combined with CCDStack, final processing with PS CS2 Images were taken at the fully automated Burkes Observatory on 09/15, 09/16 2009 using ACP. |