Visibility III / V
I have browsed the sky to get suitable subjects from the deep sky for our association’s new ASI120MC-S camera. The SW 80ED tube is a great game, but the camera isn't really suited to the dimmest subjects, and they still need to be fired at the burning level of the tube. The M27 seemed like a suitable target, with enough surface brightness and no need for cropping. The light came from a modest half hour with 1 minute exposures and twenty darks. The tops of the neighbor’s trees prevented a longer session.
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