有 6074 筆資料符合您搜尋的條件

PTS
週四 26 4月, 2018 06:08
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: Fast photometry of symbiotic candidates requested
回覆: 0
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Fast photometry of symbiotic candidates requested

AAVSO Alert Notice 632 Fast photometry of symbiotic candidates requested April 25, 2018: Dr. Jeno Sokoloski (Columbia University) and Mx. Adrian Lucy (graduate student, Columbia University) have requested AAVSO observations in support of a search underway by Mx. Lucy for symbiotic stars. Dr. Sokolos...
PTS
週三 25 4月, 2018 06:36
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: Coverage requested for current outburst of AG Dra
回覆: 0
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Coverage requested for current outburst of AG Dra

AAVSO Alert Notice 631 Coverage requested for current outburst of AG Dra April 24, 2018: Drs. Jaroslav Merc and Rudolf Gális (both of the Pavel Jozef Šafárik University (Slovakia)), on behalf of their scientific team, have requested AAVSO assistance in observing the symbiotic variable AG Dra as a fo...
PTS
週一 23 4月, 2018 20:57
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 April 23 Sun - prominences on SSW limb
回覆: 0
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2018 April 23 Sun - prominences on SSW limb

2018 April 23 Sun - prominences on SSW limb Prominences show up on the SE, NWW, SW, SSW and NEE limb. This is the prominences on the SSW limb. 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 wo...
PTS
週一 23 4月, 2018 20:55
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 April 23 Sun - prominences on SE limb
回覆: 0
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2018 April 23 Sun - prominences on SE limb

2018 April 23 Sun - prominences on SE limb Prominences show up on the SE, NWW, SW, SSW and NEE limb. There are 2 groups of prominences on the SE limb, of different morphology. As the slow motion is still unavailable, I have to continue with push or pull the telescope to put the image in field. This ...
PTS
週一 23 4月, 2018 20:53
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 April 23 Sun - prominences on NWW limb
回覆: 1
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2018 April 23 Sun - prominences on NWW limb

2018 April 23 Sun - prominences on NWW limb Prominences show up on the SE, NWW, SW, SSW and NEE limb. These prominences on the NWW limb show various styles. 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 t...
PTS
週一 23 4月, 2018 15:44
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 April 23 Sun - prominence on NEE limb
回覆: 0
觀看: 22

2018 April 23 Sun - prominence on NEE limb

2018 April 23 Sun - prominence on NEE limb Prominences show up on the SE, NWW, SW, SSW and NEE limb. This jet-like prominence on the NEE limb is very short-lived. 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 ...
PTS
週一 23 4月, 2018 15:35
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 April 23 Sun - AR12707
回覆: 0
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2018 April 23 Sun - AR12707

2018 April 23 Sun - AR12707 AR12707 never produce visible sunspots, and is now reduced to plages and filaments. It is located SW of AR12706. 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 work...
PTS
週一 23 4月, 2018 14:46
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 April 23 Sun - AR12706
回覆: 2
觀看: 13

2018 April 23 Sun - AR12706

2018 April 23 Sun - AR12706 AR12706 has now developed into a huge AR, with the sunspots spanning more than 10 longitude degrees, and its filaments occupying more than 15 degrees in longitude. The leading sunspot is large with multiple umbrae, while the following sunspots are small. Most of the flare...
PTS
週日 22 4月, 2018 18:09
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 April 22 Sun
回覆: 1
觀看: 32

2018 April 22 Sun

2018 April 22 Sun Observation was severely affected by clouds, and just managed a few whole-disc images. Only AR12706 is 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 clos...
PTS
週日 22 4月, 2018 12:17
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 April 21 Sun - AR12706 and AR12707
回覆: 1
觀看: 38

2018 April 21 Sun - AR12706 and AR12707

2018 April 21 Sun - AR12706 and AR12707 AR12706 has developed into a large and very active AR over the past couple of days. AR12706 is a bipolar group with a large complex sunspot in the leading (west) side, and many small sunspots. A strong chain of flares show up near the following sunspots, and a...

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