| Classification: |
Bright Diffuse Emission Nebula / Caldwell C11 / Sh2-162 |
| Constellation: |
Cassiopeia |
| Object Location: |
Ra 23h 21m 28s Dec +61° 17’3 (current) |
| Size & Distance: |
15x15 Apx 7100 to11.000 ly. App |
|
| Date & Location: |
7-26-14 Palomar Mountain |
| Exposure: |
Ha (G) Slll (R) Olll (B) 6ea. 1x1 @600 3h Total |
| Optics: |
Telescope Engineering Company APO180FL @ f/5.23 using an Astro-Physics TCC160 F/L 940mm |
| Mount: |
Astro-Physics 1200 GTO / ATS 10x36 Pier |
| Camera: |
FLI-MLx694/CFW2-7/ Atlas focuser @-20c |
| Filters: |
Astrodon 3nm Ha, Sll, Olll |
| Software: |
MaxImDL 6. Photoshop CS5 |
|
| Notes: |
NGC 7635, also called the Bubble Nebula, Sharpless 162, or Caldwell 11, is a H II region
emission nebula in the constellation Cassiopeia. The "bubble" is created by the stellar
wind from a massive hot, 8.7[1] magnitude star. 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. |
