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.
2018 April 29 Sun - prominences on E limb
2018 April 29 Sun - prominences on E limb
- 附加檔案
-
- prominence-05_31_21Z.jpg (83.81 KiB) 已瀏覽 357 次
-
- prominence-05_35_24Z.jpg (84.56 KiB) 已瀏覽 357 次
-
- prom-E-05_53_09Z.jpg (89.1 KiB) 已瀏覽 357 次
-
- prom-E-05_53_33Z.jpg (77.14 KiB) 已瀏覽 357 次
-
- prom-E-06_18_04Z.jpg (60.04 KiB) 已瀏覽 357 次
-
- prom-E-06_18_37Z.jpg (64.86 KiB) 已瀏覽 357 次
-
- prom-E-06_20_28Z.jpg (64.55 KiB) 已瀏覽 357 次
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