September 7th

Clear sky - enough for 15 x 600 seconds on M31
New scope performing well - tight round images all over except for top left corner - a bit of elongation.

September 8th

Sunspot activity is increasing

Best 20% of 30 images, 0.018 seconds exp. Mylar solar film and Ha filter

Main group

A friend asked how big the sunspots are - I made a graphic.
(Inverted Sun)