| Target: |
M27, planetary nebula. Also known as the Dumbbell nebula. |
Date: | 8.9.2004 |
| Time: | - | ||
| Location: | Vantaa, Finland | ||
| Conditions: | Naked eye limit magnitude ~4. | ||
| Telescope: | N150 f5 (GSO) | Mount: | GEM w RA stepper motor (Sky-View) |
| Camera: | SC2 webcam (PCVC840K). Raw color mode |
Filters: | Baader #2459207 UV/IR-cut |
| Exposure: | 112 x 18s (out of 220), dark frame and synthetic flat field. Unguided. | ||
| Processing: | Stacked in K3CCDTools. Adjusted in Photoshop. | ||
| Images: |
 full resolution image displayed |
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| Notes: | The unprocessed image stack had significant glow on the right side. I managed to attenuate this glow by a synthetic flat frame. The blue channel still has some room for improvement, I might have clipped it a bit during processing. | ||