I watched these proms today too, they were lovely, not quite what yesterday's monster was, but still great for a minimum!
Was this with a chroma?
Very best,
Cool calcium prom 11-13-2018
- Montana
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Re: Cool calcium prom 11-13-2018
Great shots Apollo, the prominence is super 
Alexandra

Alexandra
- krakatoa1883
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Re: Cool calcium prom 11-13-2018
Fine prom video, Apollo.
- Carbon60
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Re: Cool calcium prom 11-13-2018
Nice calcium proms, Apollo.
Stu.
Stu.
Lunt LS60THa B1200 PTFT
150mm H-alpha Solar telescope with Lunt35 mod
DMK41, Basler acA1920-155
NEQ6 Pro-mount
Fluxgate Magnetometers (1s and 150s Cadence)
More images at http://www.flickr.com/photos/solarcarbon60/
150mm H-alpha Solar telescope with Lunt35 mod
DMK41, Basler acA1920-155
NEQ6 Pro-mount
Fluxgate Magnetometers (1s and 150s Cadence)
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: Cool calcium prom 11-13-2018
The CaK prom is great to see Apollo
The dark specks are typical of dust in the optical path (in 'the spot' clip), and should likely lie close to the chip based on their small size. The half circle artifacts look strange...very uniform in size and appearance. Will be interested to know what caused them. If you capture with Firecapture or similar software these can be removed quite nicely with flat fields...the dust specs at least. No promises on the other ones.
Brian

The dark specks are typical of dust in the optical path (in 'the spot' clip), and should likely lie close to the chip based on their small size. The half circle artifacts look strange...very uniform in size and appearance. Will be interested to know what caused them. If you capture with Firecapture or similar software these can be removed quite nicely with flat fields...the dust specs at least. No promises on the other ones.
Brian
Brian Colville
Maple Ridge Observatory
Cambray, ON Canada
Maple Ridge Observatory
Cambray, ON Canada
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