Tuesday, 30 June 2015
Despite being the hottest day of the year (so far!), the last day of june had some of the best seeing conditions i've come across this year, well certainly at 6.30am. The live image was rock steady and etched on the screen with detail, a rare sight to see, especially at 393nm. This shot was taken with the ED60 at 1950mm focal length with stacked barlows, the homebrew CaK filter and the PGR Blackfly GigE IMX249 camera. Click on the image to view in the lightbox viewer as it looks much better when viewed full size!
A mosaic taken with the 100mm Tal and Daystar Quark, along with the PGR Blackfly GigE IMX249 camera. Be sure to click the image to view in the light box as this is a large image and looks much better when viewed full size.
A couple of full disks from early this morning, the first with the DS40 at 650mm focal length, the second with the Quark and the ED80 (showing a badly behaving interference pattern that I couldn't flat out) at 1950mm focal length. Not much happening on the disk at the moment but this should improve as the active regions on the limb rotate to become geo-effective. Imaged with the PGR Blackfly IMX249 camera.
Monday, 29 June 2015
The sun looked like it was going to be blank at the start of the weekend, however by the end of the weekend a new active region ar12374 had given us a small spot and emerging flux region mid disk, and over the limb several larger sunspots had appeared in the form of ar12373, which although apparently quiet has had some surge proms associated with it suggesting it is not dormant. This shot was taken with the ED60 at 1500mm focal length with the homebrew CaK filter and the PGR Blackfly GigE IMX249 camera.
There was a worry only 24 hours ago the sun would be nearly blank as the big active region departed, fortunately another has rounded the eastern limb, and potentially there is a region developing mid disk. Taken with the 40mm scope at 650mm focal length with the homebrew CaK filter and the PGR Blackfly GigE IMX249 camera.
Sunday, 28 June 2015
Couldn't resist a shot from this perspective of the departing giant active region AR12371 taken with the Tal100R refractor, Daystar Quark and the PGR Blackfly IMX249 camera. Gives the impression of flying over the sun in a space ship!
I don't normally do prom shots as they tend not to come out very well, but this one looked half decent with the live view on the screen yesterday so thought I would give it a try, it's better than my usual attempts! Taken with the ED80, Daystar Quark, Baader Solar Telecompressor and the the PGR Blackfly GigE IMX249 camera.
A couple of full disks here; the first with the Daystar Quark on the ED80 scope, the second with the Coronado DS40. Interesting to compare the subtle differences between the 2. Camera used in both instances was the PGR Blackfly GigE IMX249.
Friday, 26 June 2015
I was hoping for some flaring, but just got the movement of the turbulent plasma, lots of subtle changes! Taken with the 100mm Tal refractor, Daystar Quark, Baader Solar Telecompressor and PGR Blackfly gigE IMX249 camera. The flat I used on the image hasn't quite worked, but you get an idea of what is going on!
Thursday, 25 June 2015
I managed a quick closeup of this monster active region just before work with the 100mm Tal Refractor, Daystar Quark, Baader Solar Telecompressor and the PGR Blackfly GigE IMX249 camera. Lots of detail visible - animation to follow, still working on it...
Posted by Mark Townley at Thursday, June 25, 2015
Tuesday, 23 June 2015
The skies were finally clear for long enough for me to get the scopes out for the first time in a week and get an image of this monster active region that has been throwing out solar flares. This image was taken with the Skywatcher ED80, Daystar Quark, Baader Solar Telecompressor and the PGR Blackfly GigE IMX249 camera.
My double stacked 40mm Coronado etalons definitely perform better - ie onband, at temperatures around 20 celcius, and today was one of those days, with lots of detail visible. Even with a couple of spots the sun still looked good. Taken at 650mm focal length with the PGR Blackfly IMX249 camera.
The suns disk is pretty quiet bar the massive active region that is currently visible. The proms were pretty bright in CaK wavelengths today. Taken with the 40mm scope at 650mm focal length with the PGR Blackfly GigE IMX249 camera.
Saturday, 20 June 2015
I did a comparison of the Ha full disk with my 2 different setups; the first was taken with the Coronado DS40 at 650mm focal length, the second with the ED80 and the Daystar Quark. Presented at this size there is little between the 2 disks, but the difference is the image size, the latter image is 3 times the size, and so when you 'zoom in' there is a lot more detail to be seen. Of course there is a time and a place for each image - the first is a single capture and the little 40mm aperture is tolerant of poor seeing conditions, the latter being a mosaic is much more susceptible to variations in both transparency and seeing. What it does show is that the Quark has a nice tight bandpass!
I took 7 frames over about 5 minutes with a view of picking out the best, but they were all pretty decent so I decided to just assemble them as an animation. This was taken with the ED60 and shows how the sun boils away in CaK, even over a small timescale.
I was up early on the 7th June and imaging was in full swing by 7am with the 100mm scope to try to make the most of the better seeing first thing in the morning. I took a lot of images, and not many came out, I should have backed off and tried imaging at 80mm aperture, but, i'm pleased with these 2 taken with the homebrew CaK filter and the PGR Blackfly IMX249 camera.
The seeing wasn't really up to it as there is variation in some of the panels in this mosaic, and, again hadn't got my flat sorted out properly, but did get a result in the end that kind of worked! I also took the image below in double stack mode as a comparison, but, the seeing and the flat again weren't perfect. Shows what can be potentially achieved though.
Both images were taken with the ED80 and the PGR Blackfly IMX249 camera. Just for good measure, below is the full disk image taken at the same time with the much smaller aperture Coronado DS40 scope at 650mm.
There is obviously much less resolution here but I find it interesting the results these three different setups give of the same subject.
Tuesday, 16 June 2015
Even when solar activity is low, the surface never stops boiling away with endless plasma convection cells as can be seen in this image taken with the 40mm scope at 650mm focal length with the homebrew CaK filter and the PGR Blackfly GigE IMX249 camera. The animation spans approximately 15 minutes with one frame every 3 minutes.
The skies were clear and I had time to kill, so I decided to do a run of images for an animation using the DS40, Hinode Solar Guider and PGR Blackfly IMX249 camera. With all that activity I was hoping for a nice big flare, but, alas, other than a few dancing proms and filaments not much was happening in the half hour time span that this animation covers. Oh well, better luck next time hopefully!
Thursday, 11 June 2015
A quick capture of the active regions that rounded the limb at the start of the week, quite a nice cluster. Taken with the ED60 at 1300mm focal length with the homebrew CaK filter and the PGR Blackfly IMX249 camera.
When there's an abundance of active regions the CaK full disk always looks great! We've been lucky over the last week or so with this. Taken with the 40mm scope at 650mm focal length with the homebrew CaK filter and PGR Blackfly GigE IMX249 camera.
Wednesday, 10 June 2015
Tuesday, 9 June 2015
Monday, 8 June 2015
A full disk with the quark has always been of of my aims since owning the filter. After doing a cling film flat I finally have a result that I am properly happy with. The original image is over 3 times the size of those that I get with the DS40 and the larger it is viewed the better it looks. Taken with the ED80, Daystar Quark and the PGR Blackfly GigE IMX249 camera.
Sunday, 7 June 2015
Saturday, 6 June 2015
Some new active regions are on their way round to wake up an otherwise quiet sun. Really pleased with the level of detail the 100mm scope is getting with the Quark - lots of fine texture! The larger pixels of the PGR Blackfly IMX249 definitely help too.