2020 August 11 Sun - AR12768, AR12769 and AR12770 in Ca-K
AR12770 is today west of the meridian, at (N23W18).
Bright flares show up in the past 4 days.
The leading sunspots are much smaller today.
AR12769 is close to the NW limb, at (N27W58).
A small remnant part of AR12768 is visible on the NW limb.
Sunspot count: group=1. sunspot=2, R=12
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
exposure: 0.75 ms for disc, 0.75 - 0.90 ms for closeups.
approximately south is up, east to the left
2020 August 11 Sun - AR12768, AR12769 and AR12770 in Ca-K
2020 August 11 Sun - AR12768, AR12769 and AR12770 in Ca-K
- 附加檔案
-
- cak-disc-084817.png (131.32 KiB) 已瀏覽 206 次
-
- cak-disc-085237.png (431.29 KiB) 已瀏覽 206 次
-
- cak-AR-084929.jpg (95.35 KiB) 已瀏覽 206 次
-
- cak-AR-084949.jpg (80.05 KiB) 已瀏覽 206 次
-
- cak-AR-085056.jpg (78.81 KiB) 已瀏覽 206 次
-
- cak-AR-085121.jpg (77.87 KiB) 已瀏覽 206 次
-
- cak-AR-085146.jpg (74.19 KiB) 已瀏覽 206 次
-
- cak-AR-085206.jpg (75.94 KiB) 已瀏覽 206 次
誰在線上
正在瀏覽這個版面的使用者:沒有註冊會員 和 23 位訪客