3-day evolution of a filament near NE limb - 2018 May 18

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: 6320
註冊時間: 週日 28 10月, 2007 08:50
來自: HK

3-day evolution of a filament near NE limb - 2018 May 18

文章 PTS » 週六 19 5月, 2018 22:21

3-day evolution of a filament near NE limb - 2018 May 18

On May 18, the filament has grown to at least 5-fold in length, running in the NE-SW direction, and a fainter entension from the SW end which runs SE. The plages are scattered on much larger arena.

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
filament-NE-02_14_36Z.jpg
filament-NE-02_14_36Z.jpg (195.38 KiB) 已瀏覽 157 次
filament-NE-02_14_57Z.jpg
filament-NE-02_14_57Z.jpg (153.65 KiB) 已瀏覽 157 次
filament-NE-02_15_14Z.jpg
filament-NE-02_15_14Z.jpg (172.59 KiB) 已瀏覽 157 次
filament-NE-02_24_34Z.jpg
filament-NE-02_24_34Z.jpg (215.99 KiB) 已瀏覽 157 次
filament-NE-02_25_07Z.jpg
filament-NE-02_25_07Z.jpg (185.25 KiB) 已瀏覽 157 次
filament-NE-02_26_17Z.jpg
filament-NE-02_26_17Z.jpg (175.3 KiB) 已瀏覽 157 次
filament-NE-02_39_45Z.jpg
filament-NE-02_39_45Z.jpg (233.01 KiB) 已瀏覽 157 次
filament-NE-02_40_58Z.jpg
filament-NE-02_40_58Z.jpg (202.6 KiB) 已瀏覽 157 次
filament-NE-02_55_18Z.jpg
filament-NE-02_55_18Z.jpg (205.8 KiB) 已瀏覽 157 次
filament-NE-02_55_45Z.jpg
filament-NE-02_55_45Z.jpg (155.64 KiB) 已瀏覽 157 次

PTS
夸克星
文章: 6320
註冊時間: 週日 28 10月, 2007 08:50
來自: HK

Re: 3-day evolution of a filament near NE limb - 2018 May 18

文章 PTS » 週六 19 5月, 2018 22:22

more images
附加檔案
filament-NE-02_56_19Z.jpg
filament-NE-02_56_19Z.jpg (196.25 KiB) 已瀏覽 155 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