I just picked up some #13 Welder's glass. The spot is very easily seen naked eye. I need to get a solar filter for one of my scopes. Greg --- Chuck Hards <chuckhards@yahoo.com> wrote:
The current sunspot is large enough to show motion when viewed visually. In only a ten-minute period, a small "tail" on the eastern (trailing) edge of the spot went from a gentle curve, to a sharp kink, then a branch forked-out forming a crude "Y". Little intrustions, or "bays", of the penumbra scallop-out the edge of the umbra. This spot is a good candidate to see a white-light flare, if you are lucky enough to be at the eyepiece at the right time. Use at least 100X, more if your local seeing will permit it. Don't set-up on or near pavement if it can be helped. A driven scope will make following the spot easier, but 100X isn't too bad for hand-tracking. Just watch the spot carefully, and you'll notice changes within a few minutes. I find the motion much more difficult to see with my glass TO glass filter, than the Baader material, which provides a white solar image and better contrast.
C.
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