M13 : The Great Cluster in Hercules

A deeper version of my first attempt at this wonderful globular cluster. Althought the noise is much better than my shorter 300D photograph last year it could still use more exposure time. Click on the image for a larger version (1440x1211, 576kb).

Information about this object can be found on the SEDS website

Photograph Information
Date	06.18.2006
Location	Clearfield Observatory
Telescope	AP130 @ f6 w/field flattner
Camera	Canon 350D, Hutech modified type I
Exposure	Sum of 30 x 2 minute exposures at ISO 800
Notes	68°F, 89%rh, average transparency and seeing. Initial RAW conversion, registration and mild ASINH stretch in IRIS. Noise reduction in PixInsight LE 1.02 Additional adjustments in Photoshop CS2.