2023 January 23 Sun - Solar surface in Ca-K, with AR13188, AR13190, AR13191, AR13192, AR13194, AR13195, AR13196, AR13187, AR13198, AR13199 and AR13200.
A brief clearance of clouds allows me to observed in Ca-K.
Sunspot count: group=9, sunspot=75, R=165
Telescope:
For whole-disc: Sharpstar AL80 II refractor, ED Triplet
focal length : 500 mm f/6.25
Camera : ASI1600MM Pro, cooled to -13.0C
Filters: Lunt Ca-K Module B1200.
approximately north is up, east to the left.
2023 January 23 Sun - Solar surface in Ca-K, with AR13188, AR13190, AR13191, AR13192, AR13194, AR13195, AR13196, AR13187
2023 January 23 Sun - Solar surface in Ca-K, with AR13188, AR13190, AR13191, AR13192, AR13194, AR13195, AR13196, AR13187
- 附加檔案
-
- cak-disc-161434.jpg (958.62 KiB) 已瀏覽 1206 次
-
- cak-disc-161452.jpg (844.8 KiB) 已瀏覽 1206 次
-
- cak-disc-161508.jpg (879.02 KiB) 已瀏覽 1206 次
誰在線上
正在瀏覽這個版面的使用者:沒有註冊會員 和 10 位訪客