Birdwatch Note Rating
2023-12-03 11:14:10 UTC - HELPFUL
Rated by Participant: A85225C18B8ACDA12A24E834166F5DFF0EEAD559A293C99F4C0837225391EC35
Participant Details
Original Note:
As confused comments, due to no Context, UV image. Coronal H is simply lower temperature area on Sun, that looks black when the brighter areas are exposed correctly. But still bright. 12hr irrelevant, as gives no start point . They can last days. Nothing to worry or panic. https://www.swpc.noaa.gov/phenomena/coronal-holes
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