NGC4631 - The Whale Galaxy and NGC4656 - The Hockey Stick

The Whale & HockeyStick

Found in the constellation Canes Venatici

Discovered by William Herschel in 1787.

NGC 4631 aka The Whale (bottom left) is a huge edge-on spiral galaxy, which is apparently distorted by its small elliptical companion, NGC 4627. Rich field telescopes show it in one field with its large, heavily distorted companion, NGC 4656 aka The HockeyStick (top right). NGC4656 seems to have interacted massively with NGC 4631: there's a bridge of hydrogen gas connecting both galaxies.

Camera: Apogee U16M (16803), Astrodon Gen II LRGB filters
Scope: 12.5" Planewave CDK
Mount: Paramount ME
Guider: ST402ME in an Astrodon MMOAG
Luminance: 25 x 10 min
RGB: 31/28/27 x 10 min
Initial processing in PixInsight then finishing touches in Photoshop CC 

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Lucknow, Ontario

May 2023