2021 February 26 Sun - solar surface in Ca-K, with AR12803, AR12804 and AR12805
AR12803 and AR12805 are less active today. Bright plages are visible, but no trace of sunspot.
AR12804 remains very active with lots of bright plages. The leading and following sunspots of this Class-D group are clearly recorded.
sunspot count: group=1, sunspot=7, R=17
Telescope: Sharpstar AL-80 II, 8 cm f/6.25 APO refractor
Camera : ASI174MM
focal length : 500 mm f/6.25
filter: Lunt Ca-K Module B1200
approximately north is up, east to the left
2021 February 26 Sun - solar surface in Ca-K, with AR12803, AR12804 and AR12805
2021 February 26 Sun - solar surface in Ca-K, with AR12803, AR12804 and AR12805
- 附加檔案
-
- cak-disc-111714.png (137.08 KiB) 已瀏覽 259 次
-
- cak-disc-111756.png (136.03 KiB) 已瀏覽 259 次
-
- cak-disc-111837.png (136.48 KiB) 已瀏覽 259 次
-
- cak-AR12803-804-112316.png (58.62 KiB) 已瀏覽 259 次
-
- cak-AR12803-804-112321.png (74.67 KiB) 已瀏覽 259 次
-
- cak-AR12803-804-112348.png (71.34 KiB) 已瀏覽 259 次
-
- cak-AR12803-804-112351.png (70.09 KiB) 已瀏覽 259 次
-
- cak-AR12805-112326.png (82.58 KiB) 已瀏覽 259 次
-
- cak-AR12805-112331.png (74.5 KiB) 已瀏覽 259 次
-
- cak-AR12805-112335.png (82.51 KiB) 已瀏覽 259 次
誰在線上
正在瀏覽這個版面的使用者:沒有註冊會員 和 12 位訪客