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Owl Nebula
 
© D Elijah
Credit Please credit D Elijah if you are using this image.

Owl Nebula

Date of image 02/11/2016

Owl Nebula (M97, NGC 3587).

Hardware details: Camera: Canon 600D (astro modded). Telescope: SW Evostar 120 with Baader UHC-S filter. Mount: AZ-EQ6 guided using a ST80 synguider. Image details: Lights: ~30 x 3min at ISO 800, Darks: 50 x 3min at ISO 800 (from dark library), Lights and darks separated by 15 sec intervals. Flats: 50 x 1/350s (taken from laptop monitor screen) at ISO 800, Bias: 50 x 1/4000 at ISO 800. 

The weather was excellent - no clouds during the whole night. I was imaging this after 3am and the sky was exceptionally clear.

Processing was done in DSS, I increased the saturation by 30% and manually aligned and stretched the colours. There is a small amount of aberration (probably caused by some tilt in the sensor) because the nebula is near the edge of the frame. The green comes out very strongly here and there is a tinge of H alpha round the edges. As always, more subs means more detail.

Credit

Please credit D Elijah if you are using this image.

Copyright

© D Elijah

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