M13 - A Globular Cluster in Hercules July 20 2010 Amateur Astronomy Picture of the Day

July 20 2010 M13 - A Globular Cluster in Hercules

Data collected with a 10 inch RCOS Ritchey Chretien on an AP1200GTO from my backyard Observatory using an SBIG ST10XE, CFW10, AO8 plus water assisted cooling.20 x 300s each, Luminance, Red, Green and Blue. Luminance Binned 1x, Color Data Binned 2x. Sub exposures calibrated, aligned and stacked in CCDStack. CCDStack was used to combine the RGB, and then the Color Data and Luminance was brought into Photoshop for a final combine. Effective Focal Length 2292.4 mm ~ .61" per Pixel Image Center: RA 16h 41m 41s, Dec +36d 27m 39s, Pos Angle +234d 45'
Submitted by: William R. Mattil (wrmattil)	Location: Haltom City, Tx	Date: June 18 2010

2010-07-20 07:22:17 GMT RichieJarvis

A real beaut! Love it :)

2010-07-21 15:10:46 GMT Teresa

Nicely processed. Hard to believe this was taken from an urban location with only 10" of aperture.

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July 20 2010