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PTS
週三 17 1月, 2018 22:56
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 January 17 Sun - AR12696
回覆: 1
觀看: 20

2018 January 17 Sun - AR12696

2018 January 17 Sun - AR12696

Today, the sunspots have grown larger with multiple umbrae.

Telescope: AP Starfire EDT 155 mm f/9.
stopped to 50 mm (f/28) for disc images, with 4X telecentric lens (f/36) for closeups
filter: Solar Spectrum SO1.5/0.3A with CERF prefilter
Camera: Imperx 4M15
PTS
週三 17 1月, 2018 22:49
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 January 16 Sun - AR12696
回覆: 2
觀看: 16

2018 January 16 Sun - AR12696

2018 January 16 Sun - AR12696 On Jan.16, more flares and filaments show up in this region, and 2 tiny sunspots also show up. This is now numbered as AR12696. Telescope: AP Starfire EDT 155 mm f/9. stopped to 50 mm (f/28) for disc images, with 4X telecentric lens (f/36) for closeups filter: Solar Spe...
PTS
週三 17 1月, 2018 22:46
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 January 15 Sun - AR12696
回覆: 1
觀看: 10

2018 January 15 Sun - AR12696

2018 January 15 Sun - AR12696 On Jan. 15, this flare-filament has developed into a complex and very active structure, yet no sunspot is seen. Telescope: AP Starfire EDT 155 mm f/9. stopped to 50 mm (f/28) for disc images, with 4X telecentric lens (f/36) for closeups filter: Solar Spectrum SO1.5/0.3A...
PTS
週三 17 1月, 2018 22:08
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 January 14 - 17 Sun - development of AR12696
回覆: 1
觀看: 12

2018 January 14 - 17 Sun - development of AR12696

2018 January 14 - 17 Sun - development of AR12696 On January 13, the whole set of prominences on the SEE limb "landed" on the disc, producing a huge filament. On Jan. 14, a strong flare-filament showed up on the eastern end of this filament, indicating the formation of an Active Region. However, no ...
PTS
週二 16 1月, 2018 09:03
版面: 業餘天文研究專區 Amateur Astronomers' Research Area
主題: Nova Muscae 2018 - PNV J11261220-6531086
回覆: 0
觀看: 24

Nova Muscae 2018 - PNV J11261220-6531086

AAVSO Alert Notice 609 Nova Muscae 2018 - PNV J11261220-6531086 January 15, 2018 Event: Nova in Musca - Nova Muscae 2018 = PNV J11261220-6531086 Discovered by: Rob Kaufman (Bright, Victoria, Australia) Discovery magnitude: 7.0 V (on four frames, using Canon 650D and 55mm lens) Discovery date: 2018 J...
PTS
週二 16 1月, 2018 07:06
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 January 14 Sun - prominences on SW limb
回覆: 2
觀看: 60

2018 January 14 Sun - prominences on SW limb

2018 January 14 Sun - prominences on SW limb There are beautiful prominences on the NEE, NW, SW and SE limb. This one is on the SW limb. Telescope: AP Starfire EDT 155 mm f/9. stopped to 50 mm (f/28) for disc images, with 4X telecentric lens (f/36) for closeups filter: Solar Spectrum SO1.5/0.3A with...
PTS
週二 16 1月, 2018 07:02
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 2018 January 14 Sun - prominences on NW limb
回覆: 3
觀看: 34

2018 January 14 Sun - prominences on NW limb

2018 January 14 Sun - prominences on NW limb There are beautiful prominences on the NEE, NW, SW and SE limb. This one is on the NW limb. Telescope: AP Starfire EDT 155 mm f/9. stopped to 50 mm (f/28) for disc images, with 4X telecentric lens (f/36) for closeups filter: Solar Spectrum SO1.5/0.3A with...

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