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Dimensions1600 x 1200
Original file size2.26 MB
Image typeJPEG
M4 - Globular Cluster in Scorpius

M4 - Globular Cluster in Scorpius

Date Taken: 6/6/2014
Scope: Planewave CDK 12.5 f/8, 2541mm
Camera: SBIG STL-11000 with Astrodon Tru-Balance E-Series Gen2 filters
Temp: -15C
Mount: Losmandy Titan
Guiding: SSAG, Celestron 80mm guide scope, 600mm.
Exposure: LRGB 28:18:10:20 (L) 7x4m, binned 1x1. RGB each Nx2m, binned 2x2

Calibrated and Stacked with CCDStack2; RGB combine and DDP with MaximDL.

A short picture taken after the 8-day moon set. Not great, but it's a Messier object I haven't shot before.
Processed with CS4