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Object: M 4 Globular Star Cluster Constellation Scorpius

Distance: 7200 Light Years

Date(s) Taken: July 1-7, 2007

Telescope: Takahashi 102S

Focal Length: 816 mm

Camera: ST 2000 XM operating at -20 deg C sensor temperature

Resolution: 1.87 Arc-seconds / Pixel

Exposures: 4 hours total duration

8 Luminance - 10 Minute Images binned 1x1

6 Red - 10 Minute Images binned 2x2

5 Green - 10 Minute Images binned 2x2

5 Blue - 10 Minute Images binned 2x2

 

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