Fun with the Sun 14/10/2016

From Roger Samworth


At the meeting last night it the new Sodium-line filter/eyepiece from Daystar was mentioned. Pete (I think) said the view was a combination of Ha and white-light.

Hmmm – – – -!

Just for fun, I got hold of the 2 window-sill images, White light and Ha, that were shown at the meeting, aligned them a bit better and merged them in GIMP. I added a little limb-darkening compensation, and the result is attached, together with the 2 originals for comparison.


spots-2599-2600-ha_samworth_141016 spots-2599-2600-white_samworth_141016 spots-2599-2600-white-ha-comp_samworth_141016b

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