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Horsehead Nebula

An LRGB image with an Ha blend into the Lum and Red channels. 

Taking into account this was captured in non-ideal conditions (c25 degree elevation) due to tree obstructions and about 1hour visibility per night, I was quite impressed by the amount of detail which the narrowband subs generated.I normally take 30mins Ha subs but decided to reduce these to 10mins since I was uncertain how many usable subs I'd get due to the combination of the UK weather and the relatively short imaging window per night.

In the end, it took 3 months to gather the data.....it is at times like this when I'm thankful for an automated imaging setup !

LIGHTS: L:14, R:11, G:8, B:9 x 300s, Ha:14 x 600s, DARKS:30, BIAS:100, FLATS:40 all at -20C.



From the album:

Deep Sky III

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