2021 February 22 Sun - solar surface in white-light, with AR12802, AR12803 and possible AR12804

各類觀測太陽的儀器介紹及太陽攝影 Solarmax
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2021 February 22 Sun - solar surface in white-light, with AR12802, AR12803 and possible AR12804

文章 PTS » 週一 22 2月, 2021 12:03

2021 February 22 Sun - solar surface in white-light, with AR12802, AR12803 and possible AR12804

AR12802 is located at (N18W82) this morning. No sunspot is visible.
AR12803 is today located at (N21E35). 1 small sunspots is visible, but not recorded in my images..
Meanwhile, a new active region shows up at (N19E08). Bright flare and filaments are observed in H-alpha this morning. At least 4 small sunspots are visible, but not recorded.
sunspot count: group=2, sunspot=5, R=25

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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