2021 March 30 Sun - solar surface in Ca-K, with AR12811 and AR12812

各類觀測太陽的儀器介紹及太陽攝影 Solarmax
Coronado PST
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PTS
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2021 March 30 Sun - solar surface in Ca-K, with AR12811 and AR12812

文章 PTS » 週二 30 3月, 2021 13:59

2021 March 30 Sun - solar surface in Ca-K, with AR12811 and AR12812

AR12811 is today located at (N20W50). Large plages patches are visible, but there is no sunspot.
AR12812 is located at (N22W24). 2 sunspots are visible The bright plages are mostly to the NE of the sunspot.
sunspot count: group=1, sunspot=2, R=12

Telescope: Sharpstar AL-80 II, 8 cm f/6.25 APO refractor
Camera : ASI174MM
focal length : 500 mm f/6.25
filter: Lunt Ca-K Module B1200
approximately north is up, east to the left
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Eddy So
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Re: 2021 March 30 Sun - solar surface in Ca-K, with AR12811 and AR12812

文章 Eddy So » 週二 30 3月, 2021 21:09

[Good Job]

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