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FD's and AR12712

Posted: Tue May 29, 2018 6:52 pm
by krakatoa1883
AR12712 is now of B class (although it is still officially labeled as a C group), I couldn't observe any defined penumbra around the main spot, however this morning I observed 18 spots in the 80mm scope, most very small. In WL there is no much else to see and the disc is almost entirely blank, but in Calcium light the bright plage around the active region is really prominent.

Today I have not been able to get rid of the LS50 sweet spot, this scope's behavior is sometimes erratic.

AR12712 in Ca-H light
sun20180529_AR12712_CaH.jpg
sun20180529_AR12712_CaH.jpg (227.46 KiB) Viewed 1059 times
Continuum
sun20180529_DS_cont.jpg
sun20180529_DS_cont.jpg (335.69 KiB) Viewed 1059 times
K-line
sun20180529_FD_K.jpg
sun20180529_FD_K.jpg (328.65 KiB) Viewed 1059 times
Ca-H
sun20180529_FD_CaH.jpg
sun20180529_FD_CaH.jpg (374.47 KiB) Viewed 1059 times

Re: FD's and AR12712

Posted: Tue May 29, 2018 7:19 pm
by smerral
Lovely shots. AR12712 shows considerable evolution since I imaged it yesterday.

Re: FD's and AR12712

Posted: Tue May 29, 2018 11:17 pm
by ffellah
Very nice images, Raf, with great detail, very sharp.

Franco

Re: FD's and AR12712

Posted: Thu May 31, 2018 11:26 am
by Montana
Beautiful images and presentation, a joy to view :bow :hamster:

Alexandra

Re: FD's and AR12712

Posted: Sun Jun 03, 2018 3:07 pm
by marktownley
A great set there!