2018 March 25 Sun - tiny flare near SW limb
The solar surface is spotless (in white light) since March 21, and featureless in H-alpha.
A tiny flare shows up near the SW limb, and some activities is observed.
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), binned 2
North is up, east is to the left.
2018 March 25 Sun - tiny flare near SW limb
2018 March 25 Sun - tiny flare near SW limb
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- white-06_23_48Z.jpg (118.46 KiB) 已瀏覽 362 次
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- surface-06_41_23Z.jpg (156.91 KiB) 已瀏覽 362 次
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- surface-06_44_27Z.jpg (144.86 KiB) 已瀏覽 362 次
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- filament-SW-08_07_07Z.jpg (163.42 KiB) 已瀏覽 362 次
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- filament-SW-08_14_09Z.jpg (265 KiB) 已瀏覽 362 次
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- filament-SW-08_16_10Z.jpg (211.57 KiB) 已瀏覽 362 次
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- filament-SW-08_16_25Z.jpg (191.49 KiB) 已瀏覽 362 次
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- filament-SW-08_25_19Z.jpg (183.71 KiB) 已瀏覽 362 次
最後由 PTS 於 週日 25 3月, 2018 21:34 編輯，總共編輯了 2 次。
Re: 2018 March 25 Sun - tiny flare near SW limb
Most of the solar surface is like these images in H-alpha
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- filament-Cw-08_25_39Z.jpg (230.39 KiB) 已瀏覽 361 次
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- filament-Cw-08_25_54Z.jpg (238.15 KiB) 已瀏覽 361 次
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