Celestial hemisphere:  Northern  ·  Constellation: Hercules (Her)  ·  Contains:  Great Cluster in Hercules  ·  Hercules globular cluster  ·  M 13  ·  NGC 6205
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M13 Globular Cluster, maxchess
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M13 Globular Cluster

Getting plate-solving status, please wait...
M13 Globular Cluster, maxchess
Powered byPixInsight

M13 Globular Cluster

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Description

M13 Globular cluster. I have now begun to understand how to use my ASI178MC non cooled CCD camera. It took me a while to work out to take images as 16bit FTS files. This camera has no buffer, so capturing on my Raspberry PI USB2 ports onto an SD card using INDI/EKOS gave images with very heavy AmpGlow. Now I capture using a DEll XPS laptop that has USB3 onto a fast SSD drive. Images much better. Also found in DSS you needed to tick the 16 bit de-bayer box on the FITS tab.

Gain = 250 offset 25. I took 75 x 30 sec unguided exposures over 2 nights with 40 Darks & Flats but no Bias (which seemed to make images worse)

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M13 Globular Cluster, maxchess