Object: Whirlpool Galaxy, M51
Date: March 7, 2002 and February 10, 2002
Equipment: 10" SCT at F/3.3 and F/6.3, HX916 CCD, G11 mount, ST-4 autoguider
Exposure: LRGB:  RGB frames at F/3.3, L frame at F/6.3
Processing: Photoshop
Comments: Two exposures combined. Each shot on different days at different focal lengths.

Copyright 2002 Paul Kanevsky