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View Full Version here: : Large sunspot AR11899.


John W
16-11-2013, 12:24 PM
Saturday 16th Nov. Lots of sunspots this morning - the largest AR11899 I estimated at 42,608 km in diam. North is to upper right. Sky was a bit rough. Taken thru a WO 81 mm refractor with Baader wedge/Canon 550d. Thanks for viewing. Cheers all.

Star Catcher
17-11-2013, 09:25 AM
Hi John
Lovely detail in those spots coming through. Is there a fraction of camera tilt top versus bottom? Not much hope in Sydney any time soon for the skies to clear.
Ted

John W
17-11-2013, 01:13 PM
Hi ted, No camera tilt that I know of, but atmosphere was poor - you can tell from the edge roughness - was rippling while I was watching.