FD's and AR12712

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krakatoa1883
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FD's and AR12712

Post by krakatoa1883 » Tue May 29, 2018 6:52 pm

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 120 times
Continuum
sun20180529_DS_cont.jpg
sun20180529_DS_cont.jpg (335.69 KiB) Viewed 120 times
K-line
sun20180529_FD_K.jpg
sun20180529_FD_K.jpg (328.65 KiB) Viewed 120 times
Ca-H
sun20180529_FD_CaH.jpg
sun20180529_FD_CaH.jpg (374.47 KiB) Viewed 120 times
Raf
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Re: FD's and AR12712

Post by smerral » Tue May 29, 2018 7:19 pm

Lovely shots. AR12712 shows considerable evolution since I imaged it yesterday.
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Double stack PST, Lunt CaK B600, Daystar Quark Chromosphere
with Altair Astro 102 ED f.7 Refractor.
Celestron Nexstar 8SE.
DMK31AU03, ZWOASI120MM.

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ffellah
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Re: FD's and AR12712

Post by ffellah » Tue May 29, 2018 11:17 pm

Very nice images, Raf, with great detail, very sharp.

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Montana
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Re: FD's and AR12712

Post by Montana » Thu May 31, 2018 11:26 am

Beautiful images and presentation, a joy to view :bow :hamster:

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Re: FD's and AR12712

Post by marktownley » Sun Jun 03, 2018 3:07 pm

A great set there!
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