| Acquisition Date |
: |
September 26 and 27, 2011 |
| Camera |
: |
Canon 20Da |
| Camera Settings |
: |
ISO 1600, 61x150 seconds plus 32x300 sec - about 5 1/4 hours total exposure |
| Telescope |
: |
Celestron C8 at 1260mm |
| Mount |
: |
Schaefer GEM, guided with SSAG, PHD via 80mm f/11 guidescope |
| Adapter / Prime / Afocal / Other |
: |
Celestron f/6.3 focal reducer/flattener |
| Processing Package / Processing Applied |
: |
Images Plus 4.0 for camera control, calibration, and stacking. Photoshop CS5 used for Gradient removal, Curves, Color Correction and saturation adjustments, Star Shrinking, and High Pass Filter. Carboni Actions for additional saturation adjustments. |
| Web Site |
: |
http://www.frazmtn.com/~srosen/astrophotography/ |
| NOTES |
: |
NGC 6781 is a nice example of a planetary nebula. The nebula is about 2 arc minutes in apparent diameter - a little bit larger than its more famous cousin, the Ring Nebula. |
