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John W
18-12-2015, 01:22 PM
I have been following sunspot AR2470 as it moves across the sun's disk. See my Ha images "Sun prom on Dec 17". This image was taken thru a Herschel wedge with 540 nm filter and Canon 550d camera to show the sunspot in different light. Thanks for viewing.

Dennis
19-12-2015, 09:46 AM
Nice catch John, I’m outside just now battling the clouds trying to grab a few images of this one.

Cheers

Dennis

sungrazer
22-12-2015, 10:36 PM
That's great detail - congratulations - well done - whats the aperture on the telescope ?

John W
23-12-2015, 12:03 PM
Reply to Karen, The scope was a William Optics 81 mm refractor. Cheers for Xmas. John W.