M13 - Hercules Cluster
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M13 - Hercules Cluster
Near Lindbrook, Alberta, Canada
Exposures: LRGB 5x4m, total 80min
Processing: SGP, MaximDL, CPT
Telescope: NP101is,STF-8300M,EQ8
Guider: A80Mf, LSX2
M13 is large, bright globular cluster found in the Hercules constellation.
This image is my first try using the 8300M LRGB camera on the Televue NP101is refractor. It was taken from my backyard in the city under a nearly full moon. The color filter set was used to capture luminence and individual color frames. Once the individual frames were complete they were stacked and processed to produce the composite color image.

The color balance is a bit off on this image. The KAF-8300 image sensor does not have a constant response across the color band. Red and green tend to be stronger and blue comes in a bit weak. This image was not color balanced and due to the stronger red and green signals, the cluster came out more gold or yellow looking than it should have.

Images of M13 - The Hercules Cluster
M13 imaged with an NP101is refractor and a D90 DSLR camera
NP101is, DSLR
M13 imaged with an 11" EdgeHD SCT and a Nightscape 8300 camera
11" EdgeHD, OSC
M13 imaged with an NP101is refractor and an STF-8300M camera
NP101is, LRGB
M13 imaged with an MN190 Maksutov-Newtonian reflector and an STF-8300M camera
M13 imaged with a CFF 132 refractor and an STF-8300M camera
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