November 17, 2017: Some WL and Ca-K disks (plus a surprise appearance)

[michael.h.f.wilkinson]

Yesterday morning was sunny, and I finally managed to get some shots of the sun in Ca-K and WL with the 80mm APM.

WL, grey scale:

WL, pseudo colour:

Ca-K, grey scale:

Ca-K, pseudo colour:

Ca-K, part inverted:

Ca-K, part inverted + pseudo colour:

Seeing was poor, and the skies hazy, so I was pleased that I got detail at all. To round things off, I did a quick test to see whether my ASI178MM would come to focus with the old LS35THa I used to have, which is now used by the Kapteyn Astronomical Institute for outreach (and possibly teaching). The idea is for the Kapteyn Institute to get an ASI178MM to let students do some solar imaging for practicals, and perhaps for outreach as well. I just took a few shots, no flats, no clocking to even out the banding. Not great, therefore, but the scope did come to focus.

Not bad for just 100 frames out of 1000 stacked.

 

 

[xtreemchaos]

great set Michael, glad you have the 35 imaging well, it takes a good image mate. nothing but dismal cloud here for days, I'm hoping for some clear soon. thanks for the view. charl.

[Mr niall]

Some crackers there pal, absolutely love the last one.

[David Smith]

Great set Michael. Would love to be imaging here but the weather has been poor and the Sun is so low now that there are only a couple of hours around midday when it gains enough altitude for me to be able to image. Roll-on spring.

[Pete Presland]

Nice set of images.