The Sun

Sunspot 1520

 

Scope:Altair Astro 254mm F/8 Ritchey-Chrétien
Camera:Imaging Source DMK 21AU04 Webcam
Mount:Losmandy G11 – Gemini Series IV GoTo
Filters:White light solar filter
Exposure:2000 frame AVI file
Processing: his comprised of a 2000 frame AVI run through Registax 6, with pretty much default settings. Then loaded into PS for some curve work and sharpening.
Other Comments
Date Taken: 08-08-2012

Sunspot 1193

 

Scope:TMB 80 f/6 plus Televue x4 Powermate
Camera:Imaging Source DMK 21AU04 Webcam
Mount:Losmandy G11 – Gemini Series IV GoTo
Filters:White light solar filter
Exposure:4 x 2000 frame avi
Processing:Each of the four x 2000 frame avi files were individually processed in Registax 6 and then stacked and aligned in Photoshop CS5 using the multiply blend. A mid range curve boost was also applied, but no sharpening.
Other CommentsSunspot #1193 taken at 16:31 GMT 21, April 2011
Date Taken: 21-04-2011

Sunspots

 

Scope:TMB 80 f/6
Camera:SBIG 2000 XM
Mount:Losmandy G11 – Gemini Series IV GoTo
Filters:Lumicron H-Alpha and finally through SBIG CFW8’s Red filter.
Exposure:10 seconds @ -5c
Processing:Photoshop 6 curves, Gaussian blur and unsharp mask, sun spot and Plage enhancement. The grayscale image was then converted to an RGB one, and given a pleasing artificial colour.
Other CommentsThis was just an experiment with various filtration systems in the run up to the Venus Transit of June 2004.
Date Taken: 30-05-2004

Venus Transit of the Sun

 

Scope:TMB 80 f/6
Camera:SBIG 2000 XM
Mount:Losmandy G11 – Gemini Series IV GoTo
Filters:Lumicron H-Alpha and finally through SBIG CFW8’s Green filter.
Exposure:1/250 sec & -3 º C
Processing: Photshop 6 Curve adjustment, Gaussian blur, unsharp mask . The grayscale image was then converted to an RGB one, and given a pleasing artificial colour
Other CommentsAll this filtration to keep the exposure within the camera’s fastest setting has affected image sharpness.
Date Taken: 04-06-2004