2021 January 13 Sun - solar surface in Ca-K
In ca-K, the solar surface is very calm, and the only sign of activities are 2 small flares, one near the SE limb and the other near the SW.
sunspot count: group=0, sunspot=0, R=0
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 January 13 Sun - solar surface in Ca-K
2021 January 13 Sun - solar surface in Ca-K
- 附加檔案
-
- cak-disc-094538.png (126.94 KiB) 已瀏覽 100 次
-
- cak-disc-094731.png (399.34 KiB) 已瀏覽 100 次
-
- cak-flare-094834.jpg (72.02 KiB) 已瀏覽 100 次
-
- cak-flare-095145.jpg (62.76 KiB) 已瀏覽 100 次
-
- cak-flare-095404.jpg (64.15 KiB) 已瀏覽 100 次
-
- cak-flare-095654.jpg (57.89 KiB) 已瀏覽 100 次
-
- cak-flare-SW-094817.jpg (52.74 KiB) 已瀏覽 100 次
-
- cak-flare-SW-095053.jpg (52.99 KiB) 已瀏覽 100 次
-
- cak-flare-SW-095133.jpg (59.02 KiB) 已瀏覽 100 次
-
- cak-flare-SW-095350.jpg (48.13 KiB) 已瀏覽 100 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 10 位訪客