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PTS
週二 07 4月, 2020 12:14
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: Asteroid occultation event on 2020 May 21
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Asteroid occultation event on 2020 May 21

Asteroid occultation event on 2020 May 21 I've prepared finder charts from: Digital Sky Survey (15 x 15 arcmin) and The Sky 6 (15x11 arcmin) --------------------------------------------------------------------- IOTA/IOTA-ES occultation update for (66) Maja / UCAC4 499-055042 event on 2020 May 21, 15...
PTS
週二 07 4月, 2020 11:44
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: Asteroid occultation event on 2020 April 22
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Asteroid occultation event on 2020 April 22

Asteroid occultation event on 2020 April 22 I've prepared finder charts from: Digital Sky Survey (15 x 15 arcmin) and The Sky 6 (15x11 arcmin) ----------------------------------------------------------------------------------- IOTA/IOTA-ES occultation update for (751) Faina / UCAC4 325-215847 event ...
PTS
週二 31 3月, 2020 17:41
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2020 March 31 Sun - new active region (AR12759) near NE limb.
回覆: 2
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2020 March 31 Sun - new active region (AR12759) near NE limb.

2020 March 31 Sun - new active region (AR12759) near NE limb. This new AR12759 is located at N28 latitude, and magnetic reversal is observed. Thus this belongs to the 25th solar cycle. Sunspot count: group number=1, sunspot number =2, R=12 H-alpha image from Learmonth taken on 2020 Mar 31 at 09:00 U...
PTS
週五 27 3月, 2020 13:49
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2020 March 27 Sun - prominences on W limb
回覆: 3
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2020 March 27 Sun - prominences on W limb

2020 March 27 Sun - prominences on W limb A single, very fainr, hedgerow-type prominence shows up here. Sunspot count: group=0. sunspot=0, R=0 Telescope: Lunt LS35T with B600 blocking filter Camera : ASI174MM exposure: 9.0 ms Images taken from 03:05 UTC to 03:18 UTC cropped 320x320 approximately sou...
PTS
週五 27 3月, 2020 13:47
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2020 March 27 Sun - prominences on SW limb
回覆: 1
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2020 March 27 Sun - prominences on SW limb

2020 March 27 Sun - prominences on SW limb A single inclined pillar shows up here. Sunspot count: group=0. sunspot=0, R=0 Telescope: Lunt LS35T with B600 blocking filter Camera : ASI174MM exposure: 9.0 ms Images taken from 03:05 UTC to 03:17 UTC cropped 320x320 approximately south is up, east to the...
PTS
週五 27 3月, 2020 12:00
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2020 March 27 Sun - prominences on NE limb
回覆: 2
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2020 March 27 Sun - prominences on NE limb

2020 March 27 Sun - prominences on NE limb It seesm there are 2 prominences here. A is a faint arch-type prominence B is a brighter pillar, with a plasma mass seemingly rising. It is in the foreground. Sunspot count: group=0. sunspot=0, R=0 Telescope: Lunt LS35T with B600 blocking filter Camera : AS...
PTS
週三 25 3月, 2020 22:47
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2020 March 25 Sun - prominences on NE limb
回覆: 1
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2020 March 25 Sun - prominences on NE limb

2020 March 25 Sun - prominences on NE limb 2 prominences show up here. A is a small faint pillar B is a tall and bright pillar. Sunspot count: group=0. sunspot=0, R=0 Telescope: Lunt LS35T with B600 blocking filter Camera : ASI174MM exposure: 6.0 ms Images taken from 07:48 UTC to 08:08 UTC cropped 3...
PTS
週三 25 3月, 2020 22:33
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2020 March 25 Sun - prominences on E limb
回覆: 2
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2020 March 25 Sun - prominences on E limb

2020 March 25 Sun - prominences on E limb A single inclined pillar shows up here. Sunspot count: group=0. sunspot=0, R=0 Telescope: Lunt LS35T with B600 blocking filter Camera : ASI174MM exposure: 6.0 ms Images taken from 07:48 UTC to 08:08 UTC cropped 320x320 approximately south is up, east to the ...
PTS
週三 25 3月, 2020 22:21
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2020 March 25 Sun - prominences on SW limb
回覆: 2
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2020 March 25 Sun - prominences on SW limb

2020 March 25 Sun - prominences on SW limb 3 very faint prominences show up here: A is a hedgerow. B is also a hedgerow with its plane incline to the line of sight. C is small and very faint. Sunspot count: group=0. sunspot=0, R=0 Telescope: Lunt LS35T with B600 blocking filter Camera : ASI174MM exp...
PTS
週三 25 3月, 2020 22:08
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2020 March 25 Sun - prominences on W limb
回覆: 2
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2020 March 25 Sun - prominences on W limb

2020 March 25 Sun - prominences on W limb 3 faint prominences show up here: A is complex, a thin arch anchored fromthe chromosphere, and a plasma mass above. B is a bundle of pillars. C is small. Sunspot count: group=0. sunspot=0, R=0 Telescope: Lunt LS35T with B600 blocking filter Camera : ASI174MM...
PTS
週三 25 3月, 2020 17:16
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2020 March 25 Sun - solar surface in H-alpha
回覆: 1
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2020 March 25 Sun - solar surface in H-alpha

2020 March 25 Sun - solar surface in H-alpha In H-alpha, the solar surface is basically featureless except for the general H-alpha network. Observation is being interfered by clouds. Sunspot count: group=0. sunspot=0, R=0 Telescope: Lunt LS35T with B600 blocking filter Camera : ASI174MM exposure: 0....

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