Whirlpool – M51

Whirlpool Galaxy
M 51
4/8/2005
Ursa Major
Ionia, NY
Nexstar 11GPS, SBig 2000XM Camera/Filter Wheel at f/6.3
−25°C
# Exp (min) Filter Bin Net Time (min)
5 5 Blue 1×1 25
5 5 Red 1×1 25
5 5 Green 1×1 25
11 5 Lum 1×1 55
Total 2.1 hr
Calibrated in CCDSoft
Aligned and Stacked (added) in Images Plus.
Adjusted Levels and Curves in Photoshop

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