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PTS
週四 18 4月, 2024 08:13
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2024 April 17 Sun - Solar surface in Ca-K, with AR13633, AR13634, AR13635, AR13636, AR13637, AR13638, AR13639, AR13640,
回覆: 6
觀看: 6

2024 April 17 Sun - Solar surface in Ca-K, with AR13633, AR13634, AR13635, AR13636, AR13637, AR13638, AR13639, AR13640,

2024 April 17 Sun - Solar surface in Ca-K, with AR13633, AR13634, AR13635, AR13636, AR13637, AR13638, AR13639, AR13640, AR13641, AR13642, AR13643, AR13644, AR13645 and AR13646. . Observation through clouds. . AR13633 shows up at (S09W69). A sunspot, with full penumbra, and 3 small ones, are observed...
PTS
週三 17 4月, 2024 23:10
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2024 April 17 Sun - Solar surface in H-alpha, with eruptive flare in AR13637
回覆: 2
觀看: 5

2024 April 17 Sun - Solar surface in H-alpha, with eruptive flare in AR13637

2024 April 17 Sun - Solar surface in H-alpha, with eruptive flare in AR13637 . Observation through clouds and seeing is generally bad. . AR13637 shows up at (S13E23). At least 6 sunspot are observed, embedded in plages. The flare is not observed at 07:27 UTC when clouds interrupt observation. When a...

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