Object |
| Description: | Bubble Nebula in Emission-Line |
| Type: | Planetary Nebula |
| Constellation: | Cassiopeia |
| Distance: | 11,000 ly |
Image |
| Date: | December 6, 2005 |
| Location: | Carlsbad, CA |
| Exposure: | SII 4x15 (bin 2x2), Ha 25x10 (bin 1x1), OIII 4x15 (bin 2x2) as RGB |
| Notes: | The Ha data was collected by the C11 on 10/29/04. The SII and OIII were collected by the FSQ-106 on 12/06/05 |
Equipment |
| Optics: | Celestron C11 / Takahashi FSQ-106N |
| Focal Length: | 1764mm @f/6.3 |
| Mount: | Celestron CGE |
| Camera: | SBIG ST-2000XM |
| Focuser: | Optec TCF-S / Robo-Focus |
| Filters: | Astronomik 13nm Ha, Astrodon 6nm SII, OIII |
| Software: | CCDSoft 5, Maxim DL 4, Photoshop cs |
