2020 January 24 Sun - another new active region, maybe AR12757

各類觀測太陽的儀器介紹及太陽攝影 Solarmax
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PTS
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2020 January 24 Sun - another new active region, maybe AR12757

文章 PTS » 週五 24 1月, 2020 15:04

2020 January 24 Sun - another new active region, maybe AR12757

A new active region appears near the E solar limb. Bright flare is visible, so is a sunspot.
From the magnetogram, magnetic reversal is NOT demonstrated. Moreover, as it is just north of the solar equator, this should be from the old 24th solar cycle.

Sunspot count: group=1, sunspot number=1, R=11

H-alpha image from Learmonth, taken at 06:30 UTC.
Magnetogram and white-light images from SDO taken at 06:40:38 UTC
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Eddy So
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Re: 2020 January 24 Sun - another new active region, maybe AR12757

文章 Eddy So » 週五 24 1月, 2020 23:20

[Good Job]

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