2018 May 19 Sun - AR12709

各類觀測太陽的儀器介紹及太陽攝影 Solarmax
Coronado PST
回覆文章
PTS
夸克星
文章: 6278
註冊時間: 週日 28 10月, 2007 08:50
來自: HK

2018 May 19 Sun - AR12709

文章 PTS » 週六 19 5月, 2018 20:59

2018 May 19 Sun - AR12709

In pseudo-white light, no sunspot show up. AR12709, located close to the W limb of the solar disc, is now mainly consisted of plages and filaments. Some of the filaments of this AR have gone off-disc to form several prominences.

As the slow motion is still unavailable, I have to continue with push or pull the telescope to put the image in field. This task becomes very tedious when working on close-up imaging, and I have to use very short exposures (thus high gain) to avoid blur images.

Telescope: AP Starfire EDT 155 mm f/9.
stopped to 80 mm (f/17.5) for disc images, with 4X telecentric lens (f/36) for closeups
filter: Solar Spectrum SO1.5/0.3A with CERF prefilter
Camera: ASI1600MM, 4656X3520 pixels (3.8 micron), binned 2
North is up, east is to the left.
附加檔案
white-02_32_52Z.jpg
white-02_32_52Z.jpg (106.01 KiB) 已瀏覽 145 次
surface-02_51_03Z.jpg
surface-02_51_03Z.jpg (150.61 KiB) 已瀏覽 145 次
surface-02_52_42Z.jpg
surface-02_52_42Z.jpg (158.18 KiB) 已瀏覽 145 次
AR12709-03_02_07Z.jpg
AR12709-03_02_07Z.jpg (154.52 KiB) 已瀏覽 145 次
AR12709-03_08_17Z.jpg
AR12709-03_08_17Z.jpg (151.54 KiB) 已瀏覽 145 次
AR12709-03_08_41Z.jpg
AR12709-03_08_41Z.jpg (206.57 KiB) 已瀏覽 145 次
AR12709-03_14_08Z.jpg
AR12709-03_14_08Z.jpg (146.84 KiB) 已瀏覽 145 次
AR12709-03_14_32Z.jpg
AR12709-03_14_32Z.jpg (156.77 KiB) 已瀏覽 145 次
AR12709-03_26_34Z.jpg
AR12709-03_26_34Z.jpg (152.07 KiB) 已瀏覽 145 次
AR12709-03_41_58Z.jpg
AR12709-03_41_58Z.jpg (154.99 KiB) 已瀏覽 145 次

PTS
夸克星
文章: 6278
註冊時間: 週日 28 10月, 2007 08:50
來自: HK

Re: 2018 May 19 Sun - AR12709

文章 PTS » 週六 19 5月, 2018 20:59

more images
附加檔案
AR12709-03_52_44Z.jpg
AR12709-03_52_44Z.jpg (124.78 KiB) 已瀏覽 144 次
AR12709-03_53_17Z.jpg
AR12709-03_53_17Z.jpg (204.86 KiB) 已瀏覽 144 次
AR12709-03_58_00Z.jpg
AR12709-03_58_00Z.jpg (232.09 KiB) 已瀏覽 144 次

回覆文章

回到「太陽觀測和攝影 Solar Observation & Photography」

誰在線上

正在瀏覽這個版面的使用者:沒有註冊會員 和 1 位訪客