by Michael DiMario, Astrophotography Chair

The Bubble Nebula NGC 7635 is located in the constellation Cassiopeia 7100 light year from Earth. It is 7 light years across and is a glowing molecular cloud due to a very hot central star. The bubble molecular cloud is expanding at 4 million miles per hour. This image was captured with a Celestron C9.25 telescope with a 0.7x reducer, ZWO ASI2600MC Pro camera, and Optolong L-Ultimate filter. PixInsight was used for post processing 250 light frames of 300 sec each for an integration of 20.8 hours over a course of 4 nights.