2018 January 14 - 17 Sun - development of AR12696

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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2018 January 14 - 17 Sun - development of AR12696

文章 PTS » 週三 17 1月, 2018 22:08

2018 January 14 - 17 Sun - development of AR12696

On January 13, the whole set of prominences on the SEE limb "landed" on the disc, producing a huge filament.
On Jan. 14, a strong flare-filament showed up on the eastern end of this filament, indicating the formation of an Active Region. However, no sunspot was seen.
On Jan. 15, this flare-filament has developed into a complex and very active structure, yet no sunspot is seen.
On Jan.16, more flares and filaments show up in this region, and 2 tiny sunspots also show up. This is now numbered as AR12696.
Today, the sunspots have grown larger with multiple umbrae.

Telescope: AP Starfire EDT 155 mm f/9.
stopped to 50 mm (f/28) for disc images, with 4X telecentric lens (f/36) for closeups
filter: Solar Spectrum SO1.5/0.3A with CERF prefilter
Camera: Imperx 4M15
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PTS
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文章: 6179
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Re: 2018 January 14 - 17 Sun - development of AR12696

文章 PTS » 週三 17 1月, 2018 22:10

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Eddy So
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Re: 2018 January 14 - 17 Sun - development of AR12696

文章 Eddy So » 週四 18 1月, 2018 19:39

[Good Job]

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