2018 April 29 Sun - prominences on E limb

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: 17183
註冊時間: 週日 28 10月, 2007 08:50
來自: HK

2018 April 29 Sun - prominences on E limb

文章 PTS » 週日 29 4月, 2018 23:03

2018 April 29 Sun - prominences on E limb

Prominences show up on the E, SE, NE, and SWW limb.
This is a jet-like prominence on the E limb

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
prominence-05_31_21Z.jpg
prominence-05_31_21Z.jpg (83.81 KiB) 已瀏覽 352 次
prominence-05_35_24Z.jpg
prominence-05_35_24Z.jpg (84.56 KiB) 已瀏覽 352 次
prom-E-05_53_09Z.jpg
prom-E-05_53_09Z.jpg (89.1 KiB) 已瀏覽 352 次
prom-E-05_53_33Z.jpg
prom-E-05_53_33Z.jpg (77.14 KiB) 已瀏覽 352 次
prom-E-06_18_04Z.jpg
prom-E-06_18_04Z.jpg (60.04 KiB) 已瀏覽 352 次
prom-E-06_18_37Z.jpg
prom-E-06_18_37Z.jpg (64.86 KiB) 已瀏覽 352 次
prom-E-06_20_28Z.jpg
prom-E-06_20_28Z.jpg (64.55 KiB) 已瀏覽 352 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 8 位訪客