Cocoon from multiple dates and telescopes

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Cocoon from multiple dates and telescopes

First successful attempt at using different focal ratios. Not bad!
Using subs from 200mm f/5 newtonian and 2 different sessions with the RC8.

200mm f/5 newtonian 10x180s 4x240s, darks, flats,  ISO 800 2008-08-19
200mm f/8 RC 2×240, darks, flats ISO 1600 2012-09-16
200mm f/8 RC 10×180, 20×240, darks, ISO 1600 2014-08-26

And this is what the stack looked like:

overlap

By |2017-01-31T10:52:42+00:006 September 2014|Categories: Caldwell, Nebula, News, NGC Summer|Comments Off on Cocoon from multiple dates and telescopes