Two solar active regions in CaK.

Photos, sketches and other images by SPA members

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Joined: Sun Oct 25, 2009 3:56 pm
Location: Caithness

Two solar active regions in CaK.

Post by smerral »

The two solar active regions 2740 and 2741 imaged this morning in calcium light with the Altair Astro 102 ED-R, Lunt CaK B600 and DMK31 camera. 50/1000 frames stacked.


Celestron Nexstar 8SE, Ioptron CEM 25P mount
Altair Astro 102 ED refractor with Lunt B600 CaK diagonal
Coronado PST DS, Daystar Quark
ZWO ASI120MM camera, Canon 1000D (astro modified), Starlight Express SXV H9-C.

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Joined: Fri Dec 03, 2004 9:58 pm
Location: Wellingborough

Re: Two solar active regions in CaK.

Post by Brian »

2741 looks to be a big one then? :)
52.3N 0.6W
Wellingborough UK.

254mm LX90 on Superwedge, WO ZS66SD, Helios 102mm f5 on EQ1, Hunter 11x80, Pentax 10x50
ASI120MC Toucam Pros 740k/840k/900nc mono, Pentax K110D
Ro-Ro roof shed

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Joined: Sat Dec 11, 2004 8:18 pm
Location: Manchester

Re: Two solar active regions in CaK.

Post by Cliff »

Thanks for showing us the superb Cak images of the Two Sunspots - . Actually I tried to send but failed to send this response yesterday but failed miserably?
As far as I'm concerned the Sun has bee a revelation recently, since the first fine Sunspot appeared ago. At one stage some SPA members including David Frydman & Alan Heath, actually observed it "unaided" eye. So I ha d been wondering if that Sunspot would manage to complete a full circuit & reappear after half the Sun's rotation periodic or perhaps I should say synodic period - BINGO it DID !
Thank goodness the Sun seems alive & well & hasn't entered the Merrydeath cycle.
Best of luck from Cliff

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