M13 - The Great Globular Cluster in Hercules (Thorsten Glebe)

Celestial hemisphere: Northern · Constellation: Hercules (Her) · Contains: Hercules Globular Cluster · M 13 · NGC 6205

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M13 - The Great Globular Cluster in Hercules

Revision title: M13 closeup

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M13 - The Great Globular Cluster in Hercules

Revision title: M13 closeup

This is the fourth testshot with my new rig - PowerNewton f/2.8 + ASI294MM Pro - and I am still struggling with collimation. As there are only very few clear nights, I couldn't make much progress. I am using the OCAL v3.0 for collimation and I have the suspicion that this device is the issue, as I get quite different results if I use a Laser or collimate directly with a star (which is however very cumbersome). Hope I can sort this out soon...

In the processing of the image I aimed at showing star colors also at the center of the cluster, so brightness of the center is tamed down a bit.

Hope you enjoy the image and thanks for stopping by!

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Title: More contrast in the core

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Title: M13 closeup

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Status	Basic success
Started	...
Astrometry.net job	9942913
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M13 - The Great Globular Cluster in Hercules

Revision title: M13 closeup

M13 - The Great Globular Cluster in Hercules

Revision title: M13 closeup

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M13 - The Great Globular Cluster in Hercules

Revision title: M13 closeup

M13 - The Great Globular Cluster in Hercules

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