Explanation
The stellar wind from the Wolf-Rayet star WR 136 formes NGC6888.
Total exposure time was about 30 h.
In the loweer left you also can find the "Soap-Bubble" nebula PN G75.5+1.7,
a planetary nebula discoverd in 2008.
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| Object name: | NGC6888 - Crescent nebula | Optics: | TEC 180 FL with original flattener | ||||
| Objekt type: | Emission nebula | Focal lenght: | 1260 mm | ||||
| Constellation: | Cygnus | Camera: | FLI ML 16803-65 | ||||
| Location / Date: | Remseck / August 2012 | Exposure: | 27 x 1200 sec Ha / 25 x 1200 sec OIII / 31 x 1200 sec SII / 1 x 300 sec RGB | ||||
| Distance: | approx. 5000 ly | Filters: | Astrodon 3 nm narrowband and L-RGB filters | ||||
| Apparent dimensions: | approx. 18' x 12' | Mount: | 10micron GM2000 HPS | ||||
| Real dimensions: | - | Autoguiding: | Off-Axis Guider - SX Lodestar | ||||
| Brightness: | approx. 7.4 mag | Software: | MaxIm DL / Registar / Photoshop CS5 / PixInsight | ||||
| Position (R.A. / DEC): | 20h 12' 7" / +38° 21.3' | Image processing: | Tone mapping according to real colors | ||||
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The stellar wind from the Wolf-Rayet star WR 136 formes NGC6888. In the loweer left you also can find the "Soap-Bubble" nebula PN G75.5+1.7,
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