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Crescent nebula
© D Elijah
Credit Please credit D Elijah if you are using this image.

Crescent nebula

The Crescent nebula. Processed using DSS. 

Hardware details: Camera: Canon 600D. Telescope: SW Evostar 120 with Baader UHC-S filter. Mount: AZ-EQ6 guided using a ST80 synguider. Image details: Lights: 25 x 3min at ISO 800, Darks: 50 x 3min 0 sec at ISO 800 (from dark library), Lights and darks separated by 30 sec intervals. Flats: 50 x 1/50s at ISO 800, Bias: 50 x 1/4000 at ISO 100.

Date of capture 05/07/2016. Atmospheric transparency was good, some faint clouds appeared but did not affect the frames significantly. Auto guiding was very stable.

I increased the saturation by 30% and manually aligned the colour channel histograms. I stretched the red, green and blue channels by about the same amount to try and show the subtle difference in colour. The 600D is astro modded.


Please credit D Elijah if you are using this image.


© D Elijah
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22 minutes ago, S-Nova said:

beautiful pict - one of your best so far!

Thanks! I can't believe how many stars were captured in this image. :happy72:


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