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).