This small active region is crackling with activity with ropes of plasma leaping along magnetic field lines. Could well be one to watch developing further in the days ahead. Taken with the 100mm PST mod @ 2000mm fl with DMK31 camera.
Sunday, 30 June 2013
Seeing was very turbulent today on what was the hottest day of the year so far, the area around the limb is quite soft, but it was nice after so long to get some imaging in. Taken with the 100mm PST mod @ 2000mm fl with the DMK31 camera.
Saturday, 29 June 2013
I had my scope setup for sometime this saturday in the optimistic hope of a break in the clouds. I got one, and admittedly only one and managed to get this quick shot of departing active region AR11777. This was taken with the 70mm PST mod at f11 with a DMK31 camera.
Sunday, 16 June 2013
Taken with the 70mm PST mod at 1000mm fl ar11768 will be passing over the western limb of our star in the next couple of days. It is quite possible the large filament above it will turn into a lovely prominence as it rounds the limb.
Taken with the Coronado DS40 scope at f20 this 6 pane mosaic shows just how much was happening on our star today. The bright plage on the eastern limb surrounds numerous new active regions, However the proms were the feature that really stood out today, in particular the long needle prom in the southern hemisphere.
taken with the 40mm scope at 400mm focal length and homebrew filter, there is all of a sudden a lot happening on the suns disk. Look carefully at the 7 o'clock position and you can see the long needle prom visible in this one shot.
After a spell of inactivity on the Earth side of the solar disk there is finally a return of numerous active regions on the eastern hemisphere of the sun. Taken with the 40mm @ 400mm fl with baader continuum filter and DMK31 camera.
Sunday, 9 June 2013
I took this shot with the 100mm Tal refractor and focal reducer to give me f5 with the DMK31. I exposed this during processing to try and bring out the proms, however these are very faint, and you have to look very hard to see them. The easiest is a small surge prom at the 2 o'clock position.
I used the 127mm refractor to get this closeup shot of AR11765 at a focal length of 3500mm using the DMK31. Using the Lunt solar wedge without any additional neutral density filtration, when used with a UV/IR cut and a Baader solar continuum filter I was able to use an exposure time of 1/5000th second to freeze the seeing. I'm pleased with this shot as it is just beginning to show the polygonal shape of the granulation cells caused as a result of convection on the sun. The long focal length was achieved by stacking barlows, however the extra glass does have a subtle effect of reducing some contrast and this approach can be plagued with dust bunnies if not careful. However, all this aside i'm pleased with what is one of my best whitelight shots for a while.
All the Ha images from saturday were taken with the 100mm PST mod at 2000mm focal length using the DMK31 camera. This is the only real active region on the suns disk at the moment, but it is certainly interesting to look at.
Friday, 7 June 2013
Sunny weather reigns supreme here in the UK, with the hottest day of the year so far in many places in the country. Despite the warm temperatures the sun itself is remarkably quiet, most of the activity about to pass over the western limb with only newly developing active region sitting pretty much dead centre on the solar disk. Sadly looking at the STEREO spaceprobe images nothing is about to come round the limb any time soon. Hopefull will pick up again for the weeknd!!
Wednesday, 5 June 2013
All the activity on the sun at the current time is heading rapidly towards the western limb, and will slowly but surely pass out of view in the next couple of days. Sunspot AR11762 in the sun's southern hemisphere has developed a 'beta-gamma-delta' magnetic field that harbours energy for X-class solar flares. So far, however, the sunspot is producing only low-level B- and C-class eruptions. The calm before the storm? Stay tuned. taken with the DS40 @ f10, DMK31 camera.
Tuesday, 4 June 2013
For sometime now I have been looking to have a 'portable' scope that go on a camera tripod and produce views in 3 wavelengths. I already own a Coronado SM40 scope, however have not really used it as the objective lens displayed quite strong astigmatism, however recently i was able to replace the objective lens, and fortunately the new one is optically as would be expected. I decided to try this scope (by removing the etalons!) with my CaK filters and Baader Solar Continuum filters, this give a near full disk view at the native 40mm aperture 400mm focal length with the DMK31 camera. This setup also works with the focal reducer to give smaller image scale if the setup is not mounted on a tracking mount, or for instance if there is a large prominence lift off that needs to be captured. The 3 full disk images below were all captured with this setup, and for the image scale presented here works really well. Now I just need to get a small portable tracking mount!
Sunday, 2 June 2013
The sun continues to put on a fiery face in the summer like weather we are currently having here in the UK and this shown well in this full disk shot taken with a double stacked Coronado SM40 scope. This has recently had a bit of a 'rejuvenation' following the replacement of its objective lens and the original displayed astigmatism. I've also finally been able to release a allen stud on the hinge plate on one of the etalons to allow me to adjust it and in the process get a tighter bandwidth and resultant image with plenty of detail. The picture above was taken at f20, 800mm focal length using a DMK31 camera, and is a mosaic of 6 individual panes.
I've really enjoyed following this active region over the past couple of weeks, there has always been plenty going on it with it and presenting a different view each day. Now as it nears the limb the choppy waves of plasma just take on a more 3D appearance. Taken with the 100mm PST mod at 2000mm focal length with a DMK31 camera.