NGC 6888 - Crescent Nebula
NGC 6888 - Crescent Nebula |
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Object data of NGC6888 |
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| Object type: | Emission nebula | |
| Size: | 18' x 12' | |
| Magnitude: | 7.4 mag | |
| Constellation: | Cyg | |
| Distance: | 5,000 Ly | |
| Notes: | NGC6888 is an emission nebula in the constellation Cygnus, about 5000 light years away. It is formed by stellar winds from the Wolf-Rayet star WR 136 (HD 192163). | |
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Exposure data |
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| Date: | 2025-09-21 until 2025-12-10 (8 nights) | |
| Location: | Nussbach / Austria (400m) | |
| Telescope: | Alluna RC 16" with AFFR flattener-reducer 0.74x (f=2520mm) | |
| Camera: | QHY 268M with Baader CMOS filters | |
| Binning: | L 1x1 / RGB 1x1 / Ha 1x1 / [OIII] 1x1 | |
| Mount: | ASA DDM85 | |
| Exposure time: | L 16x8min / RGB 7x8min each / Ha [OIII] 25x8min each | |
| Exposure time total: | 11h 36min | |
| Notes: | Ha frames were captured in bright moon nights. | |
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