2020 August 06 Sun - AR12768, AR12769 and AR12770

各類觀測太陽的儀器介紹及太陽攝影 Solarmax
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2020 August 06 Sun - AR12768, AR12769 and AR12770

文章 PTS » 週四 06 8月, 2020 08:55

2020 August 06 Sun - AR12768, AR12769 and AR12770

AR12768 is a huge active region but only flares, plages and filaments are present. No sunspot is visible this morning.
AR12769 produces bright flares and filaments but the sunspot has disappeared.
AR12770 is close to the NE limb, just east of AR12768, at (N21E61). 2 sunspots are visible. This is also from the 25th solar cycle.

sunspot count: group=1, sunspot=2, R=12

H-alpha image from Learmonth, taken at 00:30 UTC.
Magnetogram and white-light images from SDO, taken at 00:10 UTC
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