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Nice. I suppose the slow rotation is caused by the rotation of the earth?
Yes, this is field rotation due to the Alt-Azimuth mounting. (The sun's own rotation is much slower.) You get the same thing with the moon or star constellations at night. It is just less obvious with the sun normally.
Nice. I suppose the slow rotation is caused by the rotation of the earth?
Yes, this is field rotation due to the Alt-Azimuth mounting. (The sun's own rotation is much slower.) You get the same thing with the moon or star constellations at night. It is just less obvious with the sun normally.