2018 March 09 Sun - filament and plages near disc centre
The solar surface has been spotless since AR12670 turned to the backside on March 04, 2018.
The filament-plage assembly is now close to the disc centre, and is still producing filaments.
These images are captured using the new DIY tilting jig. It seems the jig eliminates nearly all interference fringes, and the vignetting problem is minimized. It also seems the light-trap is functioning well, as there is no detectable stray light from the tilting jig even I do not seal the gap between the tilted plates.
Telescope: AP Starfire EDT 155 mm f/9.
stopped to 50 mm (f/28) 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)
North is up, east is to the left.
2018 March 09 Sun - filament and plages near disc centre
2018 March 09 Sun - filament and plages near disc centre
- 附加檔案
-
- surface-02_11_07Z.jpg (165.4 KiB) 已瀏覽 183 次
-
- filament-plage-02_28_14Z.jpg (219.26 KiB) 已瀏覽 183 次
-
- filament-plage-02_42_57Z.jpg (267.74 KiB) 已瀏覽 183 次
-
- filament-plage-02_43_25Z.jpg (252.14 KiB) 已瀏覽 183 次
-
- filament-plage-02_43_57Z.jpg (216.81 KiB) 已瀏覽 183 次
-
- filament-plage-02_48_37Z.jpg (246.61 KiB) 已瀏覽 183 次
-
- filament-plage-02_49_00Z.jpg (242.5 KiB) 已瀏覽 183 次
-
- filament-plage-02_49_42Z.jpg (236.7 KiB) 已瀏覽 183 次
-
- filament-plage-03_02_05Z.jpg (262.37 KiB) 已瀏覽 183 次
-
- filament-plage-03_02_37Z.jpg (261.66 KiB) 已瀏覽 183 次
Re: 2018 March 09 Sun - filament and plages near disc centre
more images
- 附加檔案
-
- filament-plage-03_02_49Z.jpg (264.5 KiB) 已瀏覽 181 次
-
- filament-plage-03_14_01Z.jpg (256.76 KiB) 已瀏覽 181 次
-
- filament-plage-03_14_37Z.jpg (252.02 KiB) 已瀏覽 181 次
-
- filament-plage-03_15_11Z.jpg (244.94 KiB) 已瀏覽 181 次
-
- filament-plage-03_26_24Z.jpg (239.69 KiB) 已瀏覽 181 次
![[Good Job]](./images/smilies/onion_d5f02ecd.gif "Good Job")
誰在線上
正在瀏覽這個版面的使用者：沒有註冊會員 和 5 位訪客