| Telescope / Lens | TMB 80mm Refractor fl/384mm |
| Mount Type | Astro-Physics 1200 |
| Camera | SBIG ST10xme cfw9 |
| Filters | Ha, LRGB Astrodon |
| Film | CCD |
| Exposure | 190 minutes Ha,LRGB |
| Processing | CCDStack, Photoshop CS2 & Picture Wind Pro |
| Date | Images taken 09/05/2008 |
| Location | June Mountain 122° 43.528′ W, 43° 48.407′
N 22 miles S of Dexter, Oregon |
| Conditions | 3232′ clear calm skies magnitude 6 |
The Bubble Nebula NGC 7635 is also known as Caldwell 11. This is an emission nebula in the constellation of Cassiopeia. The Bubble nebula was created from a massive young central star, because it is very hot, it has created a stellar wind. As a result, this stellar wind has formed a “Bubble. Surrounding the nebula is a massive molecular cloud with dark clumps that consequently form new stars as the material condenses. The Bubble nebula NGC 7635, has a diameter of 7-9 light years and lies approximately 8,000 light years from earth.
M52 is located just above and to the left. Open Star Cluster M52 (NGC 7654) is located in the Northern portion of the constellation Cassiopeia. It is 19 light years in diameter, at a distance of 5,000 light years from earth
NGC 7538 is another nebula to the right of the Bubble nebula. NGC 7538 is 9,100 light years away and reside in the Constellation Cepheus. The largest protostar discovered so far is forming here. This protostar is 300 times the size of our solar system. This nebula is also a very active star forming region.
A narrow band Ha filter was used to help capture the nebulosity made up of primarily Hydrogen. LRGB filters were also used in a SBIG ST10XME CCD through a TMB 80mm f/6 refractor & TeleVue 0.08 field flattner/reducer.
NGC 7635 Taken with TEC 140 f/7
NGC 7635 Taken with TEC 140 f/7 Crop
This is an emission nebula in the constellation Cassiopeia. This nebula is rich in H2 and birthing place of stars. The massive molecular cloud is created by a stellar wind storm from a young central star that is massive and hot. The bubble itself is itself excited by a hot central star. It was discovered by William Herschel in 1787.