|Object:||Galaxy M101 in Ursa Major|
|Date:||January and February 2004 (four nights)|
|Equipment:||TEC140 at F/7, HX916 CCD, G11 mount, ST-4|
L binned 1x1, R, G, B and Ha binned 2x2.
H-a data was blended into the red channel using Photoshop's Lighten combine method (maximum pixel value)
|Processing:||Photoshop, flats, no darks|
exposure was interrupted by clouds nearly every night it was attempted.
Some of the frames were shot through thin clouds.
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Copyright © 2004 Paul Kanevsky