2020 November 27 Sun - solar surface in white-light, with AR12783, AR12784, AR12785 and AR12786

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 November 27 Sun - solar surface in white-light, with AR12783, AR12784, AR12785 and AR12786

文章 PTS » 週五 27 11月, 2020 13:17

2020 November 27 Sun - solar surface in white-light, with AR12783, AR12784, AR12785 and AR12786

AR12783 is moving towards the SW limb, at (S22W50). The leading sunspot is still intact, with 2 smaller sunspots to its east.

AR12784 No visible sunspot.

AR12785 is now more distant from AR12786 as the effect of foreshortening diminishes. The sunspot remains the same Class-J.

AR12786 moves away from the SE limb, and the sunspot shows more its structure. Its penumbra is splitting, and it seems the umbra is splitting up also. 2 small umbral dots are visible inside the southern part of penumbra. Several small following sunspots are visible to the far east of the faculae.

sunspot count: group=3, sunspot=13, R=43

Telescope: Celestron C5, 127mm f/10 Schmidt-Cassegrain
Camera : ASI1600MM Pro, not cooled.
focal length : 1250 mm f/10
2X barlow added for some of the close-up images.
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 November 27 Sun - solar surface in white-light, with AR12783, AR12784, AR12785 and AR12786

文章 PTS » 週五 27 11月, 2020 13:19

Images of AR12785 and AR12786
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PTS
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文章: 9582
註冊時間: 週日 28 10月, 2007 08:50
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Re: 2020 November 27 Sun - solar surface in white-light, with AR12783, AR12784, AR12785 and AR12786

文章 PTS » 週五 27 11月, 2020 13:19

more
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Eddy So
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Re: 2020 November 27 Sun - solar surface in white-light, with AR12783, AR12784, AR12785 and AR12786

文章 Eddy So » 週五 27 11月, 2020 22:01

[Good Job]

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