Hi John, Unfortunately, this email service won’t carry photos, so we couldn’t see your views. — Joe Sent from my iPhone
On Feb 8, 2022, at 6:46 PM, John M. Craig <jmcraig@xmission.com> wrote:
Hi Folks,
I don't know that I've ever seen a prominence that was this high before. It apparently made Facebook as "Jupiter-sized" which is a bit of an ambiguous description but it was impressive--about as high as Jupiter's diameter was what was meant, I think. This link is to a photo from the Cerro Tololo H-alpha scope that is part of the GONG network at around 11:30 Mountain Time yesterday:
https://gong2.nso.edu/HA/hag/202202/20220207/20220207183630Ch.jpg
A couple of my very much less striking efforts are attached.
In case you have any interest in the equipment, these are taken with a Nikon CoolPix 10MP camera that is at least 15 years old; hand held to the eyepiece (Lunt Solar 7.5 - 28 mm zoom) through an 80mm Lunt H-alpha scope, pressure tuned. I think the clarity might well be better if my hands didn't shake so much, but it also has the disadvantage of being a color camera so the resolution is substantially less than 10MP because of the Bayer mask's much smaller number of red-sensitive cells.
I continue to enjoy keeping track of our own star and its rapid changes.
John _______________________________________________ Utah-Astronomy mailing list -- utah-astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy
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