| Constellation of Cassiopeia NGC 7635, also called the Bubble Nebula, an emission nebula in the constellation Cassiopeia. Messier 52 an Open Star Cluster is above and to the left.. The "bubble" is created by the stellar wind from a massive hot young central star, shinning at 8.2 magnitude The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow. This smaller cluster is only 15' across and some 2700 light years away from Earth. |
| Telescope / Lens | TMB 80mm Triplet f/4.8 384mm FL |
| Mount Type | Piggyback on Astro-Physics 1200 GoTo Mount |
| Camera | SBIG ST10xme CCD |
| Filters | SBIG CFW9 with Astrodon Generation 1 filters |
| Film | None |
| Exposure | 120 min. Ha 60min, RGB 20min each |
| Processing | CCDSoft, CCDStack, Photoshop CS5 |
| Date | July 17, 2010 |
| Location | Snow Peak area 30miles East of Cottage Grove, Oregon |
| Conditions | 3700' magnitude 6+ Skies; Clear, steady |