NGC7635, The Bubble Nebula, is a H II region emission nebula in the constellation Cassiopeia. This nebula is between 7,100 and 11,000 light-years from Earth and has an apparent magnitude of about 10. 83x180sec fits exposures captured across three nights in N.I.N.A 3.1 and stacked in Siril 1.4.0. Telescope: Orion 8" 1000mm f4.9 Newtonian reflector. Mount: Orion Atlas EQ-G Guide Scope: Meade 800mm f10 reduced to f5 with Atik x.5 focal length reducer (ADM rings). Imaging Camera: Canon T3i with full spectrum modification. Guide Camera: Meade DSI Pro monochrome 16bit camera. Imaging camera in prime focus. Filtration used: · · Resolution 5132 x 3382

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Created on

Friday, August 15, 2025

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Saturday, August 16, 2025

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