M51 LRGB

[AstroAndy]

These are 4 renditions of M51, the Whirlpool Galaxy, designation NGC 5194, between Ursa Major and Canes Venatici, an interacting grand design spiral galaxy at approx. 20mil. light years. The image on the bottom left is a regular 2:45h integration time RGB (red green blue) image. On the right, split into its component channels, Luminance (black white, brightness) on top, channels ab (red green, blue yellow). I have purposely overprocessed the luminance channel in this pic, a more modest lum. chan went into the image.

[oldpink]

very nice
love to image this myself but my house is in the way just now

[AstroAndy]

Ty..this is a reprocess, with all the beautiful weather we've had, there weren't that many chances to go outside.