2018 April 10 Sun - prominences on SSW limb
AR12703 is on the W limb, but there is no sunspot today. I am not sure if the prominences on the W limb is associated with this AR or not.
It is the first time in 50 years that I have not slow motion for my observation, not even a slow-motion knob. All I can do is to 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 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 10 Sun - prominences on SSW limb
2018 April 10 Sun - prominences on SSW limb
- 附加檔案
-
- prominence-02_27_41Z.jpg (110.61 KiB) 已瀏覽 193 次
-
- prominence-02_31_34Z.jpg (97.84 KiB) 已瀏覽 193 次
-
- prominence-02_31_56Z.jpg (64.21 KiB) 已瀏覽 193 次
-
- prom-SSW-03_05_39Z.jpg (83.33 KiB) 已瀏覽 193 次
-
- prom-SSW-03_05_50Z.jpg (83.27 KiB) 已瀏覽 193 次
-
- prom-SSW-03_14_17Z.jpg (91.04 KiB) 已瀏覽 193 次
-
- prom-SSW-03_14_35Z.jpg (74.75 KiB) 已瀏覽 193 次
-
- prom-SSW-03_14_49Z.jpg (79.81 KiB) 已瀏覽 193 次
-
- prom-SSW-03_17_32Z.jpg (86.64 KiB) 已瀏覽 193 次
-
- prom-SSW-03_24_18Z.jpg (80.65 KiB) 已瀏覽 193 次
Re: 2018 April 10 Sun - prominences on SSW limb
more images
- 附加檔案
-
- prom-SSW-03_24_49Z.jpg (73.96 KiB) 已瀏覽 192 次
-
- prom-SSW-03_28_04Z.jpg (80.6 KiB) 已瀏覽 192 次
-
- prom-SSW-03_28_20Z.jpg (78.47 KiB) 已瀏覽 192 次
誰在線上
正在瀏覽這個版面的使用者:沒有註冊會員 和 16 位訪客