2021 September 17 Sun - prominences on the NW solar limb.
Compare these images with images from yesterday.
Sunspot count: group=0, sunspot=0, R=0
For H-alpha images:
Telescope: Lunt LS50T with B1200 blocking filter + 2X barlow
Camera : ASI1600MM Pro, not cooled.
exposure: 25.0 ms
For Ca-K images:
Telescope: Sharpstar AL-80 II, 8 cm f/6.25 APO refractor
Camera : ASI1600MM Pro, not cooled
focal length : 500 mm f/6.25
filter: Lunt Ca-K Module B1200
exposure: 9.0 ms
approximately north is up, east to the left
2021 September 17 Sun - prominences on the NW solar limb.
2021 September 17 Sun - prominences on the NW solar limb.
- 附加檔案
-
- cak-prom-105112.png (72.75 KiB) 已瀏覽 75 次
-
- cak-prom-105150.png (210.14 KiB) 已瀏覽 75 次
-
- cak-prom-NW-105328.png (41.34 KiB) 已瀏覽 75 次
-
- cak-prom-NW-105618.png (130.72 KiB) 已瀏覽 75 次
-
- cak-prom-NW-105844.png (120.89 KiB) 已瀏覽 75 次
-
- cak-prom-NW-110146.png (100.29 KiB) 已瀏覽 75 次
Re: 2021 September 17 Sun - prominences on the NW solar limb.
Images in H-alpha
- 附加檔案
-
- ha-prom-111514.png (96.22 KiB) 已瀏覽 74 次
-
- ha-prom-111538.png (269.5 KiB) 已瀏覽 74 次
-
- ha-prom-NW-111900.png (84.82 KiB) 已瀏覽 74 次
-
- ha-prom-NW-112112.png (237.53 KiB) 已瀏覽 74 次
-
- ha-prom-NW-112120.png (256.31 KiB) 已瀏覽 74 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 4 位訪客