2020 December 02 Sun - solar surface in H-alpha, with AR12785, AR12786, AR12787, AR12788, AR12789 and AR12790
AR12786 and AR12788 are surrounded by bright flares these days. Flare activity has lowered a bit today. The sunspots are diminishing.
Sunspots are visible in AR12785, AR12786 and AR12790.
No flare is visible in AR12787.
Flares are visible in AR12789.
In AR12790, an elongated region of bright flares appears to the east of the sunspot.
sunspot count: group=3, sunspot=16, R=46
Telescope: Lunt LS50T with B1200 blocking filter, and 2X barlow
Camera : ASI174MM
exposure: 0.80 - 4.0 ms
approximately north is up, east to the left
2020 December 02 Sun - solar surface in H-alpha, with AR12785, AR12786, AR12787, AR12788, AR12789 and AR12790
2020 December 02 Sun - solar surface in H-alpha, with AR12785, AR12786, AR12787, AR12788, AR12789 and AR12790
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Re: 2020 December 02 Sun - solar surface in H-alpha, with AR12785, AR12786, AR12787, AR12788, AR12789 and AR12790
Images of AR12787
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- ha-AR12787-112828.png (129.65 KiB) 已瀏覽 33 次
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- ha-AR12787-113545.png (260.17 KiB) 已瀏覽 33 次
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Re: 2020 December 02 Sun - solar surface in H-alpha, with AR12785, AR12786, AR12787, AR12788, AR12789 and AR12790
Images of AR12789 and AR12790
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- ha-AR12789-790-112804.png (115.24 KiB) 已瀏覽 33 次
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- ha-AR12789-790-112819.png (113.74 KiB) 已瀏覽 33 次
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