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PTS
週三 09 5月, 2012 14:03
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2012 May 09 Sun - AR11471
回覆: 2
觀看: 980

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PTS
週三 09 5月, 2012 14:01
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2012 May 09 Sun - AR11471
回覆: 2
觀看: 980

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PTS
週三 09 5月, 2012 13:59
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2012 May 09 Sun - AR11471
回覆: 2
觀看: 980

2012 May 09 Sun - AR11471

Seeing is better this morning but deteriates from 11 am. Observation is often interrupted by passing clouds. AR11471, in the southern hemisphere, is near the western limb. Expect to see many limb activities tomorrow. Telescope: AP Starfire EDT 155 mm f/9. stopped to 50 mm for disc images, with 4X te...
PTS
週三 09 5月, 2012 13:57
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: Sun Today ( 9 May 2012)
回覆: 6
觀看: 2011

请问:“Picture : North is up, East at left”,日面方位如何确定? Stop the motor, sun will drift west. If your telescope has a diagonal, then count ESWN clockwise. If not count ESWN anticlockwise. A simpler method: Move the telescope east-ward, the Sun will move in the FOV, the leading limb is the west. Then move...
PTS
週三 09 5月, 2012 13:35
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2012 May 09 Sun
回覆: 0
觀看: 759

2012 May 09 Sun

Seeing is better this morning but deteriates from 11 am. Observation is often interrupted by passing clouds. The Sun is now dominated by AR11476 together with AR11474 and AR11475 in the northern hemisphere, while AR11471, in the southern hemisphere, is subdued. A new active region is turning up at t...
PTS
週三 09 5月, 2012 09:43
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: Sun Today ( 8 may 2012)
回覆: 7
觀看: 1822

今天用pst看過,沒有留意到較細少的一組黑子,但發覺一個好的zoom eyepiece,十分有用! :D Dear BingSze, If your purpose is to watch sunspots I suggest using classical Herschel wedge + ND filters. This arrangement preserves all the resolution of the telescope. You'll see very sharp sunspots and, depends upon aperture of your telescope,...
PTS
週三 09 5月, 2012 08:55
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: Request for monitoring of SS Cygni
回覆: 0
觀看: 1790

Request for monitoring of SS Cygni

AAVSO Special Notice #279 Request for monitoring of SS Cygni in support of European VLBI radio observations May 8, 2012 As mentioned in AAVSO Alert Notice 445 in August 2011 and AAVSO Special Notice #258 in October 2011, Dr. James Miller-Jones (International Centre for Radio Astronomy Research, Curt...
PTS
週二 08 5月, 2012 16:04
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2012 May 08 Sun -ar11474-475
回覆: 2
觀看: 930

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PTS
週二 08 5月, 2012 16:02
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2012 May 08 Sun -ar11474-475
回覆: 2
觀看: 930

2012 May 08 Sun -ar11474-475

Seeing is very bad this morning. AR11474-475 are towards the meridian. The associated fialments are undergoing gradual changes with plages. Telescope: AP Starfire EDT 155 mm f/9. stopped to 50 mm for disc images, with 4X telecentric lens (f/36) for closeups filter: Solar Spectrum SO1.5/0.3A with CER...
PTS
週二 08 5月, 2012 15:46
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2012 May 08 Sun - AR11476
回覆: 3
觀看: 1040

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PTS
週二 08 5月, 2012 15:45
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2012 May 08 Sun - AR11476
回覆: 3
觀看: 1040

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PTS
週二 08 5月, 2012 15:44
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2012 May 08 Sun - AR11476
回覆: 3
觀看: 1040

2012 May 08 Sun - AR11476

Seeing is very bad this morning. AR11476 is moving towards the meridian and is showing more of its complex festures. Look forward to more flare activities in this region. Telescope: AP Starfire EDT 155 mm f/9. stopped to 50 mm for disc images, with 4X telecentric lens (f/36) for closeups filter: Sol...
PTS
週二 08 5月, 2012 15:18
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2012 May 08 Sun - AR11471
回覆: 4
觀看: 1152

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PTS
週二 08 5月, 2012 15:17
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2012 May 08 Sun - AR11471
回覆: 4
觀看: 1152

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PTS
週二 08 5月, 2012 15:15
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2012 May 08 Sun - AR11471
回覆: 4
觀看: 1152

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