AR11499 has developed quickly in the central section as new flux emerged. While spots disappeared in other parts of the region the new spots have significant polarity intermixing. The region produced a number of small C flares, however, if the current rate of development is maintained, M class flares will become likely. My new etalon is performing well, showing alot more detail than the previous; given this was taken in hazy skies i'm looking forward to see what it can do in proper conditions!
Images of the Sun, our local star, at a range of wavelengths with specialist solar telescopes. Imaging tutorials, solar bits and pieces for sale, talks and outreach with the Charlie Bates Solar Astronomy Project CBSAP.
Sunday, 10 June 2012
AR11494
On a solar maximum that is mainly characterised by dying and decaying spots AR11494 is no different - a single spot with a sprialling magnetic field. Picturesque but not doing very much!
AR11504
This is the new active region to watch out for regards flaring - couple of M class flares already and is only just come around the limb. The region has a weak magnetic delta structure.
AR11499 - 9th june - New PST Etalon
I finally got the new etalon for my PST mod and as such was keen to try it out. Thankfully it has a tighter bandpass than the one i've been using given the finer detail that is visible. Based on images taken with isle of man solar scopes, which are 0.7a bandpass, I would estimate this is very close to that. Given that, I would also estimate my 'other' etalon is closer to 0.8a bandpass. I think I will be sticking with this one...
AR11499 is a nice active region that developed rapidly, giving out an M1 class flare a matter of hours before this image was taken, the remanants of it can be seen as the bright white areas in the image.
Wednesday, 6 June 2012
AR11493 - A Hi Res Ha Closeup
Sadly it was a cloud out for me this morning and so missed the transit of Venus, however by the evening clearer skies had returned and so decided to get the 100mm PST mod out and see what was there. I was really surprised how much there was going on with AR11493 - it's one of those the closer you look the more you see. This active region is described as having 'polarity intermixing' - looking at this picture our star certainly looks very turbulent and mixed up! Hopefully somemore images on friday if the weather obliges...
Tuesday, 5 June 2012
AR11497 - 4th June
This is a nicely developed active region showing bipolar spot group - the arching magnetic field lines can be seen going between the two poles - exactly the same as iron filings and a magnet, apart from each of the single spots is about the size of Earth! The image isn't quite as sharp as I would like as I think the focus had slipped on the Tal refractor - something to fix! Taken with 100mm SS @ f16 DMK31
Monster Active Regions - 4th June
In the run up to the transit of Venus, I managed to grab a gap in between the clouds to image this melee of solar magnetism that has formed one of the largest active region groupings of recent years: Comprising of AR11493, AR11496, AR11498 & AR11499 there is considerable activity going on. As it gradually becomes geo-effective the risk of flaring causing spaceweather effects here on Earth also increases.
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