有 6874 筆資料符合您搜尋的條件

PTS
週二 19 11月, 2019 11:49
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2019 November 19 Sun - AR12752
回覆: 0
觀看: 7

2019 November 19 Sun - AR12752

2019 November 19 Sun - AR12752 While the activity of AR12752 is not high today, even the tiny sunspot has gone. Sunspot count: group=0, sunspot=0, R=0 Telescope: Sharpstar AL-80 II, 8 cm f/6.25 APO refractor Camera : ASI1600MM Pro, not cooled. Barlow: 2X barlow focal length : 1000 mm f/12.5 Filters:...
PTS
週一 18 11月, 2019 13:02
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2019 November 18 Sun - AR12752
回覆: 1
觀看: 39

2019 November 18 Sun - AR12752

2019 November 18 Sun - AR12752 While the activity of AR12752 is not high today, a small sunspot with well-defined penumbra shows up. Sunspot count: group=1, sunspot=1, R=11 Telescope: Sharpstar AL-80 II, 8 cm f/6.25 APO refractor Camera : ASI1600MM Pro, not cooled. Barlow: 2X barlow focal length : 1...
PTS
週日 17 11月, 2019 13:56
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2019 November 17 Sun - AR12752
回覆: 1
觀看: 37

2019 November 17 Sun - AR12752

2019 November 17 Sun - AR12752

Sunspot count: group=0, sunspot=0, R=0

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 16 11月, 2019 22:06
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: A preliminary report on the observation of the asteroid occultation event on 2019 November 14
回覆: 0
觀看: 46

A preliminary report on the observation of the asteroid occultation event on 2019 November 14

A preliminary report on the observation of the asteroid occultation event on 2019 November 14 We (Kenneith Hui, CL Chan and I) arrived at Hokoon at about 12:50 UTC, and the target star was located by 13:15 UTC. While transparency is very poor, Asteroid (119) Althaea was visible in a 0.5 s exposure, ...
PTS
週六 16 11月, 2019 13:04
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2019 November 16 Sun - AR12752
回覆: 1
觀看: 45

2019 November 16 Sun - AR12752

2019 November 16 Sun - AR12752 While AR12752 is very active in H-alpha, it is relatively quiet in white light. Ther is no sunspot visible, and the faculae have all fade out. Sunspot count: group=0, sunspot=0, R=0 Telescope: Sharpstar AL-80 II, 8 cm f/6.25 APO refractor Camera : ASI1600MM Pro Barlow:...
PTS
週四 14 11月, 2019 23:47
版面: 天文攝影 Astrophotography
主題: 2019 November 14 - Rigel A+(B+C) at Hokoon
回覆: 1
觀看: 60

2019 November 14 - Rigel A+(B+C) at Hokoon

2019 November 14 - Rigel A+(B+C) at Hokoon

Telescope: 50-cm f/8 RC reflector
Camera: ASI1600MM Pro, cooled to -15C
Taken at 14:25:43 UTC
exposure : 100 ms
Image cropped 800x600
south is up and east to the left.
PTS
週四 14 11月, 2019 21:43
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: Asteroid occultation observation on 2019 November 14 at Hokoon
回覆: 1
觀看: 56

Asteroid occultation observation on 2019 November 14 at Hokoon

Asteroid occultation observation on 2019 November 14 at Hokoon We (Kenneith Hui, CL Chan and I) arrived at Hokoon at about 12:50 UTC, and the target star was located by 13:15 UTC. While transparency is very poor, Asteroid (119) Althaea was visible in a 0.5 s exposure. Telescope: 50-cm f/8RC reflecto...
PTS
週四 14 11月, 2019 11:03
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2019 November 14 Sun - AR12752
回覆: 1
觀看: 49

2019 November 14 Sun - AR12752

2019 November 14 Sun - AR12752 The active group on the SE limb is very active. This group is now officially assigned AR12752 and, as magnetic reversal is demonstrated and located at high latitude, this group belongs to the 25th solar cycle. The tiny sunspots seem to have all disappeared. Sunspot cou...
PTS
週三 13 11月, 2019 13:08
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2019 November 13 Sun - AR12752
回覆: 1
觀看: 40

2019 November 13 Sun - AR12752

2019 November 13 Sun - AR12752 The active group on the SE limb is very active. This group will be assigned AR12752 and, as magnetic reversal is demonstrated and located at high latitude, this group belongs to the 25th solar cycle. The small sunspot do not show up in my images, but the much larger fa...
PTS
週日 10 11月, 2019 17:05
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: A preliminary report on the observation of the asteroid occultation event on 2019 November 08
回覆: 1
觀看: 65

A preliminary report on the observation of the asteroid occultation event on 2019 November 08

A preliminary report on the observation of the asteroid occultation event on 2019 November 08 Kenneith Hui and I arrived at Hokoon before 15:00 UTC, and by 15:13 UTC, the target star (GSC4757-00579-1) was located. A faint object was located to the NE of the target star. After comparing the image wit...
PTS
週日 10 11月, 2019 12:18
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2019 November 10 Sun - AR12750
回覆: 1
觀看: 68

2019 November 10 Sun - AR12750

2019 November 10 Sun - AR12750

Sunspot count: group=0, sunspot=0, R=0

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 09 11月, 2019 13:25
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2019 November 09 Sun - AR12750
回覆: 1
觀看: 73

2019 November 09 Sun - AR12750

2019 November 09 Sun - AR12750

Sunspot count: group=0, sunspot=0, R=0

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

前往進階搜尋