Images of the month

February 2025

Themis NOAA 13959 Sunspot
Observation of the main sunspot of the active region NOAA 13959 on January 15th 2025. This white light broad band image in the red continuum highlights the two “light bridges” of the sunspot. Light-bridges are lanes of bright material that divide the sunspot umbra. The image is the results from 100 acquired snapshots processed with a Knox Thompson image reconstruction method.

January 2025

Themis NOAA 13354 Sunspot
Observation of a quiet Sun region on a “bad seeing” day, highlighting the capacity of the Themis Adaptive Optics (with and without image reconstruction technique) to resolve solar granulation.


December 2024

Themis NOAA 13354 Sunspot
Composite whitelight image (red continuum) of solar active region NOAA 13354 observed with THEMIS on June 26th 2023. The image is made by setting side by side three images obtained with THEMIS, using the capabilities of the Themis Adaptive Optics.



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results/gallery/imofmonth.txt · Last modified: 2025/02/10 12:25 by etienne
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