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2014 Oct 19 Sun - AR12192 becomes naked-eye

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發表於 2014-11-2 23:39:33 | 顯示全部樓層 |閱讀模式
The largest sunspot of AR12192 becomes naked-eye today.
The flares and aruptions continue on the solar surface.

Telescope: AP Starfire EDT 155 mm f/9.
stopped to 50 mm for disc images, with 4X telecentric lens (f/36) for closeups
filter: Solar Spectrum SO1.5/0.3A with CERF prefilter
Camera: Imperx 4M15
North is up, and east to the left.
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Archiver|手機版|小黑屋|香港天文學會

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