The sun is quiet, but is still picturesque, that filament looks like it it nearly stretching across the whole disk. Interesting that there has been a feature here on this part of the sun now for over 4 months. This image was taken with the DS40 at 560mm focal length with the DMK31 camera.
So, a patchy filament rounds the solar limb again in the southern hemisphere, is it the same one that was first visible in january? maybe, all the timings are right, if so it would make it a very long lived feature on our star. Taken with the DS40 at 700mm focal length with the DMK31 camera.
No more big filaproms in CaK today - maybe that little surge on the eastern limb is indication something is on the way around the limb, hopefully so as the sun is looking rather quiet in CaK at the moment. Taken with the 40mm at 560mm focal length with the homebrew CaK filter and DMK31 camera.
Filaments and prominences are at best ghostly and tenuous in CaK light, so imagine my surprise when I focused in on the sun with the 40mm OTA at 560mm focal length and saw not just one, but two filaproms visible quite easily on screen. Just a few hours later, the one in the north east limb lifted off in spectacular style. Taken with the homebrew CaK filter and the Imaging Source DMK31 camera.
A quick shot taken very early in the morning on 28th of april with the ED80 and the Quark in it's native format showing this little emerging flux region and filament. Taken with the DMK31 camera.
It was cold and frosty this morning, however the etalons on my DS40 definitely perform better in temperatures closer to 20c, offering more contrast due to to being on band at the higher temperatures. This image was taken at 560mm focal length with the DMK31 camera.
Taken with the ED60 at 600mm focal length, there is more detail using the larger aperture scope,. but unfortunately is more susceptible to the effects of poor seeing in the individual panes that make up this mosaic.
