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PTS
週四 21 3月, 2024 15:55
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2024 March 21 Sun - Solar surface in white-light, with AR13607, AR13608, AR13609, AR13610, AR13611, AR13613, AR13614, AR
回覆: 7
觀看: 27

2024 March 21 Sun - Solar surface in white-light, with AR13607, AR13608, AR13609, AR13610, AR13611, AR13613, AR13614, AR

2024 March 21 Sun - Solar surface in white-light, with AR13607, AR13608, AR13609, AR13610, AR13611, AR13613, AR13614, AR13615, AR13616, AR13617 and possible AR1361a, AR1361b and AR1361c . Seeing is not good. Observation affected by strong winds. . AR13607 shows up at (S18W62). At least 7 sunspots ar...
PTS
週四 21 3月, 2024 07:21
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2024 March 20 Sun - Solar surface in Ca-K-huge flares in AR13615
回覆: 2
觀看: 34

2024 March 20 Sun - Solar surface in Ca-K-huge flares in AR13615

2024 March 20 Sun - Solar surface in Ca-K-huge flares in AR13615 Seeing is mostly bad. Observation affected by strong winds. . AR13615 shows up at (S12E43). A huge and very active flare is observed in AR13615. However, interfering clouds forced me to stop observation after 16:08 UTC . Sunspot count ...
PTS
週四 21 3月, 2024 00:27
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2024 March 20 Sun - Solar surface in white-light, with AR13606, AR13607, AR13608, AR13609, AR13610, AR13611, AR13613, AR
回覆: 6
觀看: 35

2024 March 20 Sun - Solar surface in white-light, with AR13606, AR13607, AR13608, AR13609, AR13610, AR13611, AR13613, AR

2024 March 20 Sun - Solar surface in white-light, with AR13606, AR13607, AR13608, AR13609, AR13610, AR13611, AR13613, AR13614, AR13615, AR13616 and possible AR1361a, AR1361b. Seeing is mostly bad. Observation affected by strong winds. . AR13606 shows up at (N09W73). No sunspot is observed, leaving j...
PTS
週日 17 3月, 2024 23:06
版面: 天文攝影 Astrophotography
主題: Test spectrum of the Moon
回覆: 1
觀看: 79

Test spectrum of the Moon

Test spectrum of the Moon

Taken on 2024 March 18
Telescope: 6-cm refractor f/5.5
spectrograph: slitless, with Star Analyser SA100
Camera: Sony a7s

This slitless spectrograph setup will be used for observation of the flash spectrum during the April 8 solar eclipse.

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