Saturday, July 7, 2012

Dramatic effects of seeing


This image was taken with the 14 inch last night.  The seeing forecast for Indiana  predicted good to excellent conditions.  I noticed significant scintillation even on stars like Arcturus, which is currently close to the zenith.  Compare this image of Saturn taken with the 14, with the image taken with a 5 inch scope in Cape Cod and you'll get a good sense of just how important it is to have good seeing conditions for planetary imaging (something we rarely have here in Indiana, unfortunately).

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The Bubble Nebula--16h with the Seestar S50

This is a cropped image of a 16 hour integration (EQ mode, 20s exposures). It was processed in Siril, Graxpert, Cosmic Clarity, and Affinty....