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A passing time M37


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I am working on a project with my local society to refresh some of the images in the Observatory and we are after the Horsehead. Whilst waiting for this object to clear the treeline, I ran a little tester on M37, a tight open cluster in Auriga. This is 50 x 30 seconds for each RGB channel. William Optics FLT110 with the Mark IV x0.8 reducer, ASI1600, AzEQ6. No focus change required between channels, indicating that this FLT110 is rather good at what it does.


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