Whirlpool – M51

Whirlpool Galaxy
M 51
3/28/2004
Ursa Major
Fairport, NY
Nexstar 11GPS, SBig 2000XM Camera/Filter Wheel
−25°C
# Exp (min) Filter Bin Net Time (min)
3/3 1/2 Lum 1×1 9
Total hr
Calibrated, Aligned, Averaged in CCDSoft
Adjusted Levels and Curves in Photoshop
Adjusted extensively using Photoshop using a number of techniques from Jerry Londriguss’ book

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