Utah-Astronomy

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February 2022

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Anyone else see the great prominence yesterday (or perhaps the day before)?
by John M. Craig 09 Feb '22

09 Feb '22

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

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