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Blank! Nothing to See Here... 21st may

Posted: Tue May 21, 2019 1:11 pm
by marktownley
A pleasantly sunny start to the day so I darted out with the travelling kit - 50mm Lunt etalon on the 60mm f6 scope, 2x cemax, FLIR GH3 ICX916M

Imageha-fd-ss-bw by Mark Townley, on Flickr

Imageha-fd-ss-colour by Mark Townley, on Flickr

Even quiet in CaK! a couple of bright points in higher northern latitudes - maybe indication of the solar jet stream in cycle 25?

Imagecak-fd-bw by Mark Townley, on Flickr

Imagecak-fd-colour by Mark Townley, on Flickr

Above taken with the 40mm f10, 2x cemax, homebrew CaK filter and the same camera. Wish there was more to see!

Mark

Re: Blank! Nothing to See Here... 21st may

Posted: Tue May 21, 2019 1:47 pm
by MAURITS
Indeed Mark nothing to see but your pictures are very nice detailed, sharp and beautiful colored.

Re: Blank! Nothing to See Here... 21st may

Posted: Tue May 21, 2019 2:19 pm
by Montana
Super images Mark, I think the CaK is definitely more interesting, I hope those bright regions are mumours in the deep :)

:bow

Alexandra

Re: Blank! Nothing to See Here... 21st may

Posted: Tue May 21, 2019 3:15 pm
by marktownley
Thanks Maurits, thanks Alexandra. It's exactly bright points like these we need to keep an eye on. They start off like this, as the solar jetstream for cycle 25 gets closer to the surface they become emerging flux regions, and then once the magnetic field strength gets above 1500 gauss we have spots. I don't think we're quite there yet though!

Re: Blank! Nothing to See Here... 21st may

Posted: Tue May 21, 2019 5:53 pm
by ffellah
These disks are great, Mark. Let's hope for some activity to start soon.

Franco

Re: Blank! Nothing to See Here... 21st may

Posted: Tue May 21, 2019 7:07 pm
by eroel
Mark:
Great FD´s but calm Sun.
Best wishes,
Eric.

Re: Blank! Nothing to See Here... 21st may

Posted: Tue May 21, 2019 7:17 pm
by David_The_Bears_Fan
Good set Mark.

Re: Blank! Nothing to See Here... 21st may

Posted: Wed May 22, 2019 5:42 am
by marktownley
Thanks everyone!

Re: Blank! Nothing to See Here... 21st may

Posted: Wed May 22, 2019 10:33 am
by krakatoa1883
Superb CaK images, Mark, at full res they are really impressive

Re: Blank! Nothing to See Here... 21st may

Posted: Wed May 22, 2019 1:23 pm
by pedro
A very slow sun, nice images though