2020 December 29 Sun - The Sun in H-alpha, with AR12794 and AR12795

各類觀測太陽的儀器介紹及太陽攝影 Solarmax
Coronado PST
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PTS
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2020 December 29 Sun - The Sun in H-alpha, with AR12794 and AR12795

文章 PTS » 週二 29 12月, 2020 17:29

2020 December 29 Sun - The Sun in H-alpha, with AR12794 and AR12795

AR12794 has one Class-J sunspot amid plages and a few micro-flares.
AR12795 is a fully developed bipolar group, with Class-E sunspots where both the leading and following sunspots have penumbrae.
Bright flares are produced mainly between the leading and the following sunspots.
sunspot count: group=2, sunspot=7, R=27

Telescope: Lunt LS50T with B1200 blocking filter, and 2X barlow
Camera : ASI174MC
exposure: 5.5 - 8.0 ms
approximately north is up, east to the left
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Eddy So
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Re: 2020 December 29 Sun - The Sun in H-alpha, with AR12794 and AR12795

文章 Eddy So » 週二 29 12月, 2020 22:26

[Good Job]

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