NGC 7635

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Description: The central object in this image is aptly nicknamed 'The Bubble Nebula'. The hot, young central star is ejecting a stellar wind which has carved out a roughly spherical cavity in the surrounding ionized hydrogen. Click here to see the hydrogen alpha image used in the processing of this image.
Constellation: Cassiopeia
Distance: 12,000 light years
Date: 28 july, 2 september, 24 september, 1 october 2005
Equipment: 12" RC @ f/9, ST10XME, AP1200
Exposure: 4 hours 6nm Ha (Astrodon)

RGB: 195-180-150 minutes (binned 2x2)