M57 - The Ring Nebula 04-Jul-2018

Seeing was reasonably good last night at ~2.47 arcseconds (as measured by image link).

Ambient temp 85°F. I believe it will take a cooled camera to eliminate the red streaking.

The images were taken when M57 was just about at the zenith - clearer, darker and no atmospheric color dispersion, as is encountered when imaging planets.

Tracking was excellent, between 0.44 and 0.50 arc-seconds.

Bill Shaheen

Superstition Mountain Astronomical League®

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