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NGC 6888 (Crescent Nebula)
Technical Details: |
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| Optics: | 12" ASA Astrograph at F/6.8 |
| Mount: | ASA DDM 85 |
| Camera: | SBIG STL-11000M |
| Filters: | Astronomik RGB filters, Baader Ha 8nm filter, O III 7 nm filter |
| Dates/Times: | Narrowband July 2010, RGB 25 August 2011 |
| Location: | Varna, Rozhen |
| Exposure Details: | Ha = 240 min, O III= 240 min, R = 30 min., G = 30 min.,B = 30 min. |
| Subexposures: | RGB = 10 minutes, Ha = 30 minutes |
| Acquisition: | CCD Soft |
| Processing: | PixInsight, Photoshop CS |