Celestial hemisphere:  Northern  ·  Constellation: Hercules (Her)  ·  Contains:  HD150679  ·  HD150998  ·  Hercules Globular Cluster  ·  IC 4617  ·  M 13  ·  NGC 6205  ·  NGC 6207
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M13, estabrook
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M13

Getting plate-solving status, please wait...
M13, estabrook
Powered byPixInsight

M13

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Description

M13. One of the benefits of using my new refractor over my existing C6 Hyperstar setup is that the stars are rounder and tighter.  (And don't even get be started about the Hyperstar's quirky diffraction spikes.) Nowhere is that benefit more welcome than in globular cluster images.  This project had obstacles to overcome--the nights were hazy, spreading out the light from the 60% illuminated moon, and focus was hard to maintain overnight without an EAF.  But, although there's still room for improvement, this is the best shot of a globular cluster I've managed yet.

(Captured: Askar FRA500, AM5, ASI183MC Pro, Optolong L-Pro Filter. Processed: AstroPixelProcessor, PixInsight, StarXterminator, NoiseXterminator, Blanshan/Cranfield Star Reduction Script)

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