2021 February 22 Sun (about 12:00 UTC) - AR12803 and possible new AR12804 and possible AR12805

各類觀測太陽的儀器介紹及太陽攝影 Solarmax
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2021 February 22 Sun (about 12:00 UTC) - AR12803 and possible new AR12804 and possible AR12805

文章 PTS » 週一 22 2月, 2021 20:44

2021 February 22 Sun (about 12:00 UTC) - AR12803 and possible new AR12804 and possible AR12805

The sunspots of possible AR12804 have grown larger.
Meanwhile, another new active region appear at (S23E07), with bright flare, filament and at least 2 sunspots. This may be AR12805.

H-alpha image from Cerro Tololo taken at 12:00 UTC.
White-light image from SDO, taken at 10:58 UTC.
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