2021 February 26 Sun - prominences on the SW solar limb
The huge prominence here is from the huge dark filament that comes off-disc.
Sunspot count: group=1, sunspots=7, R=17
For H-alpha images:
Telescope: Lunt LS50T with B1200 blocking filter + 2X barlow
Camera : ASI174MM
exposure: 30.0 ms
For Ca-K images:
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: 9.0 ms
approximately north is up, east to the left
2021 February 26 Sun - prominences on the SW solar limb
2021 February 26 Sun - prominences on the SW solar limb
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Re: 2021 February 26 Sun - prominences on the SW solar limb
Images in H-alpha
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- ha-prom-SW-113300.png (67.44 KiB) 已瀏覽 46 次
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- ha-prom-SW-113317.png (138.91 KiB) 已瀏覽 46 次
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- ha-prom-SW-113712.png (150.51 KiB) 已瀏覽 46 次
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- ha-prom-SW-113950.png (153.01 KiB) 已瀏覽 46 次
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- ha-prom-SW-114003.png (157.43 KiB) 已瀏覽 46 次
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