2021 March 10 Sun - AR12807, AR12808 and possible AR12809

各類觀測太陽的儀器介紹及太陽攝影 Solarmax
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2021 March 10 Sun - AR12807, AR12808 and possible AR12809

文章 PTS » 週三 10 3月, 2021 11:08

2021 March 10 Sun - AR12807, AR12808 and possible AR12809

AR12806 is mostly on the backside.
AR12807 is located at (S18W50), 2 small sunspots are visible.
AR12808 is located at (N19E68). A Class-J sunspot with penumbra is visible, Followed by patches of faculae.
Meanwhile, a small active region appears at (S20E46). A small sunspot is visible amid the faculae. This may be AR12809.
Sunspot count: group=3, sunspot=4, R=34

H-alpha image from Learmonth taken at 02:30 UTC.
White-light image from SDO, taken at 01:15 UTC.
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