The Sun - 21st April 2018

[David Smith]

Another gorgeous morning here so up, tea, out with scope! First up was white light with the Lunt wedge / Revelation 15mm plossl / polariser and continuum filters. Seeing not quite as steady as yesterday but still not bad. The group has developed really nicely over night with a large (by comparison with the others) spot leading the charge across the disk followed by an entourage of diverse smaller followers interlaced with some bright faculae. There is also a small collection of a half-dozen small spots / paws just south of the leading spot (doesn't show very well in my WL FD but can be see in the AR close up). After a quick sketch I switched to imaging, first in Ca-K and then later in WL.

6 Pane Ca-K Disk @ 1000mm FL

Close up of the AR @ 2500mm FL, poorer seeing shows in this image leaving a little softer than I usually like.

Very few small proms on display in Ca-K to day but this was the largest / brightest / most obvious

Then back to white light for close up @ 2500mm again

And just a little granulation

Finally switched to the DSLR for white light full disk but I was cloud-dodging by this point so this one is the runt of the litter!

Clouds broke again a little later and I had some time at the eyepiece of the PST. With the ES 6.7mm the AR was followed by an interesting arrangement of bright features but as with Ca-K, very few proms on display.

 

[Ibbo!]

Good collection David

[laudropb]

Another lovely set Dave.

[Bizibilder]

Very nice set - good to see some activity again!

[Lowjiber]

Nicely done, David.  Those Ca-K shots you folks have been posting are gonna cost me some $$$ soon. LOL

Thanks for the shares.

Clear Skies

[Pete Presland]

A fine collection of images. 

[johnfosteruk]

Nice to see the Ca-K, fine images!