Matt Oltersdorf M100

A Matt Oltersdorf CCD image

M 100 / NGC 4321
Spiral Galaxy, type Sc
Magnitude 9.3
LRGB image 1 1/2  hours
L = 15 x 120 sec, clear filter, binning = 1
RGB = 4 each x 300 sec, RGB filters, binning = 2
Image flipped horizontally