M13 - The Great Hercules Cluster on 8-09-2002

Using a Nikon Coolpix Digital Camera

Photographs were taken with a Nikon Coolpix 990 digital camera and a 20mm Plossl eyepiece with Jack Newtons telescopes.  The camera is set at f/2.5, 400ASA, focus at infinity, fine resolution, set at wide angle.  The photograph was processed with Corel Photopaint 9 using contrast/brightness, intensity.  A dark frame was taken and subtracted from each image to eliminate pixel noise.  Corel Photopaint was used for processing and stacking images.  All of these are eyeballed for best iamge.
8/9/20032 near midnight PST, two  60s exposures stacked using Corel Photopaint.   Jack Newton's 7" Meade APO refractor was used.

Note that a larger field of views was taken to show depth.

 

8/9/20032 near midnight PST, three  60s exposures stacked using Corel Photopaint.   Jack Newton's 16" Meade SCT  was used.
8/9/20032 near midnight PST, five  60s exposures stacked using Corel Photopaint.   Jack Newton's 16" Meade SCT  was used.