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- 週五 27 11月, 2020 08:26
- 版面: 太陽觀測和攝影 Solar Observation & Photography
- 主題: 2020 November 26 Sun - prominences on the SW solar limb
- 回覆: 3
- 觀看: 132
Re: 2020 November 26 Sun - prominences on the SW solar limb
Images in Ca-K
- 週五 27 11月, 2020 08:25
- 版面: 太陽觀測和攝影 Solar Observation & Photography
- 主題: 2020 November 26 Sun - prominences on the SW solar limb
- 回覆: 3
- 觀看: 132
- 週五 27 11月, 2020 08:25
- 版面: 太陽觀測和攝影 Solar Observation & Photography
- 主題: 2020 November 26 Sun - prominences on the SW solar limb
- 回覆: 3
- 觀看: 132
2020 November 26 Sun - prominences on the SW solar limb
2020 November 26 Sun - prominences on the SW solar limb Sunspot count: group=3, sunspots=10, R=40 For H-alpha images: Telescope: Lunt LS50T with B1200 blocking filter + 2X barlow Camera : ASI174MM exposure: 22.0 ms For Ca-K images: Telescope: Sharpstar AL-80 II, 8 cm f/6.25 APO refractor Camera : AS...
- 週五 27 11月, 2020 08:20
- 版面: 太陽觀測和攝影 Solar Observation & Photography
- 主題: 2020 November 26 Sun - prominences on the SE solar limb
- 回覆: 2
- 觀看: 74
Re: 2020 November 26 Sun - prominences on the SE solar limb
Images in Ca-K
- 週五 27 11月, 2020 08:19
- 版面: 太陽觀測和攝影 Solar Observation & Photography
- 主題: 2020 November 26 Sun - prominences on the SE solar limb
- 回覆: 2
- 觀看: 74
- 週五 27 11月, 2020 08:19
- 版面: 太陽觀測和攝影 Solar Observation & Photography
- 主題: 2020 November 26 Sun - prominences on the SE solar limb
- 回覆: 2
- 觀看: 74
2020 November 26 Sun - prominences on the SE solar limb
2020 November 26 Sun - prominences on the SE solar limb Sunspot count: group=3, sunspots=10, R=40 For H-alpha images: Telescope: Lunt LS50T with B1200 blocking filter + 2X barlow Camera : ASI174MM exposure: 25.0 ms For Ca-K images: Telescope: Sharpstar AL-80 II, 8 cm f/6.25 APO refractor Camera : AS...
- 週五 27 11月, 2020 08:12
- 版面: 太陽觀測和攝影 Solar Observation & Photography
- 主題: 2020 November 26 Sun - prominences on the NE solar limb
- 回覆: 2
- 觀看: 59
Re: 2020 November 26 Sun - prominences on the NE solar limb
Images in Ca-K
- 週五 27 11月, 2020 08:12
- 版面: 太陽觀測和攝影 Solar Observation & Photography
- 主題: 2020 November 26 Sun - prominences on the NE solar limb
- 回覆: 2
- 觀看: 59
- 週五 27 11月, 2020 08:11
- 版面: 太陽觀測和攝影 Solar Observation & Photography
- 主題: 2020 November 26 Sun - prominences on the NE solar limb
- 回覆: 2
- 觀看: 59
2020 November 26 Sun - prominences on the NE solar limb
2020 November 26 Sun - prominences on the NE solar limb Sunspot count: group=3, sunspots=10, R=40 For H-alpha images: Telescope: Lunt LS50T with B1200 blocking filter + 2X barlow Camera : ASI174MM exposure: 15.0 ms For Ca-K images: Telescope: Sharpstar AL-80 II, 8 cm f/6.25 APO refractor Camera : AS...
- 週四 26 11月, 2020 23:27
- 版面: 太陽觀測和攝影 Solar Observation & Photography
- 主題: 2020 November 25 Sun - prominences on the SE solar limb
- 回覆: 2
- 觀看: 95
Re: 2020 November 25 Sun - prominences on the SE solar limb
Images in Ca-K
- 週四 26 11月, 2020 23:26
- 版面: 太陽觀測和攝影 Solar Observation & Photography
- 主題: 2020 November 25 Sun - prominences on the SE solar limb
- 回覆: 2
- 觀看: 95
2020 November 25 Sun - prominences on the SE solar limb
2020 November 25 Sun - prominences on the SE solar limb Sunspot count: group=3, sunspots=6, R=36 For H-alpha images: Telescope: Lunt LS50T with B1200 blocking filter + 2X barlow Camera : ASI174MM exposure: 22.0 ms For Ca-K images: Telescope: Sharpstar AL-80 II, 8 cm f/6.25 APO refractor Camera : ASI...
- 週四 26 11月, 2020 23:21
- 版面: 太陽觀測和攝影 Solar Observation & Photography
- 主題: 2020 November 25 Sun - prominences on the NE solar limb
- 回覆: 2
- 觀看: 57
Re: 2020 November 25 Sun - prominences on the NE solar limb
Images in Ca-K
- 週四 26 11月, 2020 23:20
- 版面: 太陽觀測和攝影 Solar Observation & Photography
- 主題: 2020 November 25 Sun - prominences on the NE solar limb
- 回覆: 2
- 觀看: 57
2020 November 25 Sun - prominences on the NE solar limb
2020 November 25 Sun - prominences on the NE solar limb The prominences look similar in both H-alpha and Ca-K. Sunspot count: group=3, sunspots=6, R=36 For H-alpha images: Telescope: Lunt LS50T with B1200 blocking filter + 2X barlow Camera : ASI174MM exposure: 15.0 ms For Ca-K images: Telescope: Sha...
- 週四 26 11月, 2020 23:14
- 版面: 太陽觀測和攝影 Solar Observation & Photography
- 主題: 2020 November 25 Sun - prominences on the NW solar limb
- 回覆: 2
- 觀看: 82
Re: 2020 November 25 Sun - prominences on the NW solar limb
Images in Ca-K
- 週四 26 11月, 2020 23:13
- 版面: 太陽觀測和攝影 Solar Observation & Photography
- 主題: 2020 November 25 Sun - prominences on the NW solar limb
- 回覆: 2
- 觀看: 82
2020 November 25 Sun - prominences on the NW solar limb
2020 November 25 Sun - prominences on the NW solar limb Except for the north-most one which appears in both H-alpha and Ca-K, the smaller ones do not show such uniformity. One may appear in H-alpha but not in Ca-K, or vice-versa. However, as I usually finish observing in Ca-K before starting on H-al...