2018 March 20 Sun - AR12701

各類觀測太陽的儀器介紹及太陽攝影 Solarmax
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2018 March 20 Sun - AR12701

文章 PTS » 週二 20 3月, 2018 23:12

2018 March 20 Sun - AR12701

AR12701 showed up just to the west of the disc centre late on March 16, and is today very close to the W limb. This AR is reduced to just 2 tiny patches of plages, and no sunspot is visible.
AR12702 showed up near the NW limb on March 18, but nothing is visible today.

Telescope: AP Starfire EDT 155 mm f/9.
stopped to 80 mm (f/17.5) for disc images, with 4X telecentric lens (f/36) for closeups
filter: Solar Spectrum SO1.5/0.3A with CERF prefilter
Camera: ASI1600MM, 4656X3520 pixels (3.8 micron)
North is up, east is to the left.
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white-05_56_32Z.jpg
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surface-06_20_15Z.jpg
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AR12701-07_17_42Z.jpg
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AR12701-07_18_20Z.jpg
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AR12701-07_19_14Z.jpg
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AR12701-07_40_44Z.jpg
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AR12701-07_41_26Z.jpg
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AR12701-07_51_32Z.jpg
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AR12701-08_02_06Z.jpg
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