2021 March 17 Sun - solar surface in white-light, with AR12808, AR12809 and AR12810

各類觀測太陽的儀器介紹及太陽攝影 Solarmax
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2021 March 17 Sun - solar surface in white-light, with AR12808, AR12809 and AR12810

文章 PTS » 週三 17 3月, 2021 12:01

2021 March 17 Sun - solar surface in white-light, with AR12808, AR12809 and AR12810

AR12808, located at (N19W19), is today a single Class-A sunspot. However, I am not able to record this.
AR12809 is located at (S22W53). This AR has become active yesterday, but no sunspot is visible. Some faculae is observed.
AR12810 is today located at (N17E64). The large sunspot has split into 2. Patches of faculae are visible.
sunspot count: group=2, sunspot=3, R=23

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
approximately north is up, east to the left
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