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PTS
週一 20 5月, 2019 11:23
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2019 May 20 Sun - 1st day with spotless Sun
回覆: 1
觀看: 48

2019 May 20 Sun - 1st day with spotless Sun

2019 May 20 Sun - 1st day with spotless Sun

Camera/lens: Sony RX10 IV, Zeiss Sonnar 8.8-220 mm f/2.4-4
focal length : 600 mm f/4 (35-mm equivalent)
Filter: Baader Solar Film 5.0
ISO: 200
images cropped 1000x1000
approximately north is up, east to the left
PTS
週一 20 5月, 2019 10:39
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: Asteroid occultation event on 2019 May 20
回覆: 2
觀看: 73

Re: Asteroid occultation event on 2019 May 20

This evening.
Hope for a clear sky.
PTS
週日 19 5月, 2019 17:44
版面: 花鳥蟲魚 Natural World
主題: 3 bird families (Segovia, Spain)
回覆: 1
觀看: 66

3 bird families (Segovia, Spain)

3 bird families (Segovia, Spain)
PTS
週日 19 5月, 2019 16:43
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2019 May 19 Sun (afternoon) - spotless
回覆: 1
觀看: 44

2019 May 19 Sun (afternoon) - spotless

2019 May 19 Sun (afternoon) - spotless

Camera/lens: Sony RX10 IV, Zeiss Sonnar 8.8-220 mm f/2.4-4
focal length : 600 mm f/4 (35-mm equivalent)
Filter: Baader Solar Film 5.0
ISO: 100
images cropped 1000x1000
approximately north is up, east to the left
PTS
週日 19 5月, 2019 10:41
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2019 May 19 Sun - AR12741
回覆: 2
觀看: 60

2019 May 19 Sun - AR12741

2019 May 19 Sun - AR12741 AR12741 is right on the W limb, but is not visible in my images. Camera/lens: Sony RX10 IV, Zeiss Sonnar 8.8-220 mm f/2.4-4 focal length : 600 mm f/4 (35-mm equivalent) Filter: Baader Solar Film 5.0 ISO: 100 images cropped 1000x1000 approximately north is up, east to the left
PTS
週六 18 5月, 2019 11:03
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2019 May 18 Sun - AR12741
回覆: 1
觀看: 45

2019 May 18 Sun - AR12741

2019 May 18 Sun - AR12741

AR12741 is closing to the W limb.
Camera/lens: Sony RX10 IV, Zeiss Sonnar 8.8-220 mm f/2.4-4
focal length : 600 mm f/4 (35-mm equivalent)
Filter: Baader Solar Film 5.0
ISO: 100
images cropped 1000x1000
approximately north is up, east to the left
PTS
週五 17 5月, 2019 10:46
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2019 May 17 Sun - AR12741
回覆: 3
觀看: 61

2019 May 17 Sun - AR12741

2019 May 17 Sun - AR12741

AR12740 has turned to the backside, leaving just AR12741.
Camera/lens: Sony RX10 IV, Zeiss Sonnar 8.8-220 mm f/2.4-4
focal length : 600 mm f/4 (35-mm equivalent)
Filter: Baader Solar Film 5.0
ISO: 100
images cropped 1000x1000
approximately north is up, east to the left
PTS
週四 16 5月, 2019 14:45
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2019 May 16 Sun (noon) - AR12740 and AR12741
回覆: 1
觀看: 40

2019 May 16 Sun (noon) - AR12740 and AR12741

2019 May 16 Sun (noon) - AR12740 and AR12741 AR12740 is right on the W limb, no sunspot is visible. A patch of faculae shows up. Camera/lens: Sony RX10 IV, Zeiss Sonnar 8.8-220 mm f/2.4-4 focal length : 600 mm f/4 (35-mm equivalent) Filter: Baader Solar Film 5.0 ISO: 100 images cropped 1000x1000 app...
PTS
週四 16 5月, 2019 09:22
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2019 May 16 Sun - AR12740 and AR12741
回覆: 1
觀看: 36

2019 May 16 Sun - AR12740 and AR12741

2019 May 16 Sun - AR12740 and AR12741 AR12740 is right on the W limb, no sunspot is visible. A patch of faculae shows up. Camera/lens: Sony RX10 IV, Zeiss Sonnar 8.8-220 mm f/2.4-4 focal length : 600 mm f/4 (35-mm equivalent) Filter: Baader Solar Film 5.0 ISO: 100 images cropped 1000x1000 approximat...
PTS
週三 15 5月, 2019 10:56
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2019 May 15 Sun - AR12740 and AR12741
回覆: 1
觀看: 35

2019 May 15 Sun - AR12740 and AR12741

2019 May 15 Sun - AR12740 and AR12741 The sunspot of AR12740 is barely visible, but the faculae is easy. Camera/lens: Sony RX10 IV, Zeiss Sonnar 8.8-220 mm f/2.4-4 focal length : 600 mm f/4 (35-mm equivalent) Filter: Baader Solar Film 5.0 ISO: 100 images cropped 1000x1000 approximately north is up, ...
PTS
週二 14 5月, 2019 23:07
版面: 天文攝影 Astrophotography
主題: 2019 May 14 - Moon (area around Clavius) at Hokoon
回覆: 2
觀看: 48

2019 May 14 - Moon (area around Clavius) at Hokoon

2019 May 14 - Moon (area around Clavius) at Hokoon

Telescope: 50-cm RC reflector, f/8
Camera: ASU1600MM Pro cooled to -13C
Taken at 11:31:35 UTC and 11:37:30 UTC
Exposur: 5 ms
cropped 1600x1200
south is up, east to the left
PTS
週二 14 5月, 2019 23:05
版面: 天文攝影 Astrophotography
主題: 2019 May 14 - Moon (area around Copernicus) at Hokoon
回覆: 2
觀看: 40

2019 May 14 - Moon (area around Copernicus) at Hokoon

2019 May 14 - Moon (area around Copernicus) at Hokoon

Telescope: 50-cm RC reflector, f/8
Camera: ASU1600MM Pro cooled to -13C
Taken at 11:24:18 UTC and 11:26:35 UTC
Exposur: 5 ms
cropped 1280x1024
south is up, east to the left
PTS
週二 14 5月, 2019 23:04
版面: 天文攝影 Astrophotography
主題: 2019 May 14 - Moon (area around Tycho) at Hokoon
回覆: 2
觀看: 53

2019 May 14 - Moon (area around Tycho) at Hokoon

2019 May 14 - Moon (area around Tycho) at Hokoon

Telescope: 50-cm RC reflector, f/8
Camera: ASU1600MM Pro cooled to -13C
Taken at 11:31:16 UTC
Exposur: 5 ms
cropped 1600x1200
south is up, east to the left

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