Saturday, September 9, 2017

Sunspots AR 2679, AR 2675, AR 2673 on 09-Sept-2017


Sunspots AR 2679, AR 2675, AR 2673 on 09-Sept-2017 w/ 127SLT and ASI290MC at prime focus.


Given the unusual sunspot activity over the last few days, I made a Scheiner mask to aid in focusing, since you can't use a Bahtinov mask without a star to focus on. The laptop was set up in the back of our SUV to shield it from glare and I used my DIY solar filter mount w/ Thousand Oaks film on the 127SLT. Best 10% of frames from 1 minute of video.

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