2020 October 18 Sun - solar surface in white-light, with AR12775 and AR12776

各類觀測太陽的儀器介紹及太陽攝影 Solarmax
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PTS
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2020 October 18 Sun - solar surface in white-light, with AR12775 and AR12776

文章 PTS » 週日 18 10月, 2020 13:23

2020 October 18 Sun - solar surface in white-light, with AR12775 and AR12776

AR12775 is almost all on the backside, at (S23W89) and is not visible except for a tiny patch of faculae.
AR12776 has been violently active in the past 24 hours, and is today located at (S13E27). A light bridge cuts the leading sunspot into 2. At least 3 tiny sunspots are visible in the following group.
sunspot count: group=1, sunspot=4, R=14

Telescope: Celestron C5, 127mm f/10 Schmidt-Cassegrain
Camera : ASI1600MM Pro, not cooled.
focal length : 1250 mm f/10
Filters: Baader Solar Film 5.0+ Baader Planetarium G-band continuum.
approximately north is up, east to the left
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PTS
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Re: 2020 October 18 Sun - solar surface in white-light, with AR12775 and AR12776

文章 PTS » 週日 18 10月, 2020 13:23

more
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Eddy So
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Re: 2020 October 18 Sun - solar surface in white-light, with AR12775 and AR12776

文章 Eddy So » 週日 18 10月, 2020 21:30

[Good Job]

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