2021 January 19 Sun - solar surface in H-alpha with AR12796 and AR12797
AR12796 is still active with flares and filaments. All sunspots are gone.
AR12797 is active with flares on the solar limb. The large leading sunspots as well as the tiny following ones are visible. There is a huge filament running southwards.
sunspot count: group=1, sunspot=4, R=14
Telescope: Lunt LS50T with B1200 blocking filter, and 2X barlow
Camera : ASI174MM and ASI174MC
exposure: 0.8 ms - 5.5 ms for monochrome images, 6.0 ms-13.0 ms for colour.
approximately north is up, east to the left
2021 January 19 Sun - solar surface in H-alpha with AR12796 and AR12797
2021 January 19 Sun - solar surface in H-alpha with AR12796 and AR12797
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Re: 2021 January 19 Sun - solar surface in H-alpha with AR12796 and AR12797
Images of AR12797
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Re: 2021 January 19 Sun - solar surface in H-alpha with AR12796 and AR12797
More
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- hac-AR12797-102056.png (610.69 KiB) 已瀏覽 55 次
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- hac-AR12797-102831.png (577.1 KiB) 已瀏覽 55 次
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- hac-AR12797-103314.png (586.93 KiB) 已瀏覽 55 次
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