The Double Cluster
6x4 minute = 24 minutes exposure from Starry Nights in Wimberley, 12/29/2007. Equipment Canon EOS 20Da (unmodified) ISO 1600, Takahashi TOA 130 (a 5" APO refractor) with flattener, and Astro-Physics AP 900GTO mount. It was early in the evening and I hadn't quite sorted out my guiding, but not too bad. Compare with older film version below.
More info about the double cluster in Perseus here. Lots of stars!
Notice the subtle color in some of large red stars.
Photo by Dick Locke
NHAC "Sammy Neal" Observing site, 02-01-03
~20 minute exposure
Tak FS-102 prime focus with reducer at 610mm focal length, f5.9
SBIG STV autoguider using Celestron ST-80 guidescope
Losmandy GM-11 mount
Kodak LE 400 film, OM1n camera
Negative Scan, Nikon Coolscan IV ED, Processed in Photoshop
Copyright © by Dick Locke. All Rights Reserved.
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