Double Cluster in Perseus


Scope: ST80  f/5 Location: Del Mar CA   10/17/03  Camera: ToUcam SC3

Exposure: 20 x 2 sec and 12 x 8 sec  Luminance with IR Block Filter; 18 x 1 sec and 8 x 4 sec RGB - 2 frame mosaic

Processing: All exposures captured and stacked in K3CCDTools. Each exposure set after stacking was aligned in Astroart; some low pass filtering was applied. Aligned masters were saved as FITS. Luminance and RGB masters of different exposures were combined in Photoshop. Final LRGB combine was done in Photoshop using Luminance Layering (or LLRGB). Color balance and mosaic joining was done in Photoshop.

This image replaces an earlier version of the double cluster. This one is a smaller field and shows better star detail within the clusters. Horizontal FOV is about 41'.


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All images and content remain the property of Jim Thommes - copyright 2003, 2006

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