Whale and Hockeystick Galaxy (NGC4631 and NGC4656) (Thorsten Glebe)

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

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Whale and Hockeystick Galaxy (NGC4631 and NGC4656)

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Whale and Hockeystick Galaxy (NGC4631 and NGC4656)

This is my second testshot with my new imaging rig and I am still learning the peculiarites of this combination of a fast newtonian with a sensor of small pixel size. The collimation is still not satisfactory and unfortunately there are only very few opportunities these months to take the scope outside. I also had an issue with the flat frames which resulted in a big circular image artifact which I could not handle.
So I thought I will have to throw away the data. Fortunately the Pixinsight team released these days some tutorials on the GradientCorrection tool which helped me to mitigate this issue so I could finally process this data.
I hope you enjoy the image and a big shoutout from my side to the Pixinsight team for the great software tools they deliver!

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Basic success
Started	...
Astrometry.net job	9750202
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Whale and Hockeystick Galaxy (NGC4631 and NGC4656)

Whale and Hockeystick Galaxy (NGC4631 and NGC4656)

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Whale and Hockeystick Galaxy (NGC4631 and NGC4656)

Whale and Hockeystick Galaxy (NGC4631 and NGC4656)

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