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PTS
週三 20 6月, 2018 23:03
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 June 20 Sun - AR12713
回覆: 2
觀看: 7

2018 June 20 Sun - AR12713

2018 June 20 Sun - AR12713 AR12713 has undergone major changes since i last observed on June 16. It has shown more flare activities, mainly from the leading pack of sunspots. As the slow motion is still unavailable, I have to continue with push or pull the telescope to put the image in field. This t...
PTS
週三 20 6月, 2018 21:52
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 June 20 Sun - AR12714
回覆: 3
觀看: 22

Re: 2018 June 16 Sun - AR12714

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PTS
週三 20 6月, 2018 21:49
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 June 20 Sun - AR12714
回覆: 3
觀看: 22

2018 June 20 Sun - AR12714

2018 June 20 Sun - AR12714 AR12714 first appeared as a small flare on June 16, and developed into an active region on June 18. The main following sunspot of this AR has a split umbrae, and the leading batch of tiny sunspots are on the lead. Flares mainly originate from this leading sunspots. As the ...
PTS
週三 20 6月, 2018 20:50
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 June 20 Sun - AR12715
回覆: 5
觀看: 14

Re: 2018 June 16 Sun - AR12715

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PTS
週三 20 6月, 2018 20:49
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 June 20 Sun - AR12715
回覆: 5
觀看: 14

Re: 2018 June 16 Sun - AR12715

more images
PTS
週三 20 6月, 2018 20:49
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 June 20 Sun - AR12715
回覆: 5
觀看: 14

Re: 2018 June 16 Sun - AR12715

more images
PTS
週三 20 6月, 2018 20:48
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 June 20 Sun - AR12715
回覆: 5
觀看: 14

2018 June 20 Sun - AR12715

2018 June 20 Sun - AR12715 AR12715 suddenly showed up near the E limb on June 19 as a bright flare, and rapidly developed into a mature AR, with a relatively large leading sunspot. Bright flares appear mostly between the sunspots and several jets come from the main leading sunspot, and appear in the...
PTS
週三 20 6月, 2018 09:41
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 June 16 Sun
回覆: 2
觀看: 26

2018 June 16 Sun

2018 June 16 Sun 3 active groups (AR12713, AR12714 and AR12715) are now visible. As the slow motion is still unavailable, I have to continue with push or pull the telescope to put the image in field. This task becomes very tedious when working on close-up imaging, and I have to use very short exposu...
PTS
週六 16 6月, 2018 22:26
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 June 16 Sun - AR12713
回覆: 4
觀看: 79

Re: 2018 June 16 Sun - AR12713

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PTS
週六 16 6月, 2018 22:25
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 June 16 Sun - AR12713
回覆: 4
觀看: 79

Re: 2018 June 16 Sun - AR12713

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PTS
週六 16 6月, 2018 22:24
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 June 16 Sun - AR12713
回覆: 4
觀看: 79

2018 June 16 Sun - AR12713

2018 June 16 Sun - AR12713 AR12713 showed up on June 11 but I can only observe this afternoon. At the leading part are 2 sunspots amid a patch of bright plages, ans several smaller sunpots follows and come with some flares. An intense forest of filaments complete the following end. As the slow motio...
PTS
週三 06 6月, 2018 06:13
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: Nova in Lupus - N Lup 2018 = PNV J15384000-4744500
回覆: 0
觀看: 42

Nova in Lupus - N Lup 2018 = PNV J15384000-4744500

AAVSO Alert Notice 637 Nova in Lupus - N Lup 2018 = PNV J15384000-4744500 June 5, 2018 Event: Nova in Lupus - N Lup 2018 = PNV J15384000-4744500 Discovered by: Rob Kaufman (Bright, Victoria, Australia) at White Cliffs, NSW, Australia (via CBET 4520) Discovery magnitude: 9.1 unfiltered CCD magnitude,...
PTS
週日 03 6月, 2018 23:08
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 June 3 Sun - huge filament near Ne limb
回覆: 1
觀看: 78

2018 June 3 Sun - huge filament near Ne limb

2018 June 3 Sun - huge filament near Ne limb Apart from AR12712, a huge filament near the NE limb is a prominent feature on the solar disc today. As the slow motion is still unavailable, I have to continue with push or pull the telescope to put the image in field. This task becomes very tedious when...

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