NGC 4631 & 4656 - The Whale & The Hockey Stick galaxies (Herwig Peresson)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: NGC 4627 · NGC 4631 · NGC 4656 · NGC 4657

NGC 4631 & 4656 - The Whale & The Hockey Stick galaxies, Herwig Peresson

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NGC 4631 & 4656 - The Whale & The Hockey Stick galaxies

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NGC 4631 & 4656 - The Whale & The Hockey Stick galaxies

Whale and Hockeystick galaxies

First test of my new Astrodon RGB filters with the Atik ONE 6.0. I am happy to see that even from my light polluted location I am able to image 10min per filter and still keeping the peak in the first half of the histogram . RGB 15-14-15 x 600sec (2 nights). Processed in Pixinsight and PS5. Despite noise reduction applied in several steps, noise is still persistent due to the required strong boost of the signal against the light polluted background. These two objects need more integration time - I will try to collect more data and add sequentially.

Explanation: NGC 4631 is seen edge-on (top right) only 25 million light-years away and is similar in size to our own Milky Way. This galaxy's slightly distorted wedge shape resembles a Whale. The dark interstellar dust clouds, a yellowish core, and young blue star clusters can be identified. The small elliptical companion galaxy NGC 4627, appears above the Whale Galaxy. At the lower left is another distorted galaxy, the hockey stick-shaped NGC 4656. The distortions and mingling trails of gas suggest that all three galaxies have had close encounters with each other in their past.

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Status	Basic success
Started	...
Astrometry.net job	648507
PixInsight job	n/a
PixInsight queue size	n/a
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NGC 4631 & 4656 - The Whale & The Hockey Stick galaxies

NGC 4631 & 4656 - The Whale & The Hockey Stick galaxies

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NGC 4631 & 4656 - The Whale & The Hockey Stick galaxies

NGC 4631 & 4656 - The Whale & The Hockey Stick galaxies

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