Afternoon Prominences
Sketch and Details by Les Cowley
The sun lives! More out of hope than expectation I took an H-alpha look at the deep solar minimum sun with my Solarmax60 on the hot afternoon of August 19. Afternoons are usually a time of poor seeing, mornings before the ground and air has warmed are much better. Remarkably the image was steady and this complex prominence was evolving from minute to minute on the NW limb. Location. Sketch made at the eyepiece at 50X, 15 minute duration. Derwent Studio and Watercolour pencils on black paper.
Les Cowley
Atmospheric Optics
Optics Picture of the Day
Les,
Most impressive and vivid sketch.
Frank 🙂
Les,
outstanding sketch!
Miłosz 🙂
Les,
This is very “warm” sketch. I like it.
Marek