M13 Globular Cluster in Hercules

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M13 Globular cluster in Hercules

FLI IMG1024S "Dream Machine" Camera @ -35deg C

Optec IR-blocking filters:

        Luminance

        Red

        Green

        Blue

Celestron C14 Telescope @ 3910mm focal length, f/11

Optec TCF-S Temperature Compensated focuser

Astro-Physics AP1200GTO Mount

Takahashi FSQ106 guide scope

SBIG ST7E guide camera

Taken at Chew's Ridge location in Monterey County, Ca. on April 11, 2002

LLRGB technique

Exposures:

    L = 3 x 600 sec, Luminance filter

    R = 1 x 600 sec, Red filter, 2x2 binned

    G = 1 x 600 sec, Green filter, 2x2 binned

    B = 1 x 600 sec, Blue filter, 2x2 binned