Clette, Frédéric ; Bechet, Sabrina ; Lemaître, Olivier ; Boulvin, Olivier ; Vanden Broeck, Grégory ; Lefèvre, Laure ; Vandekerckhove, Joan ; Bhattacharya, Shreya ;

Dataset released under the open data policy

Abstract: The USET station hosts since 2002 three modern telescopes equipped with digital cameras recording full-disk images of the Sun in three different parts of the visible-light spectrum: broad-band white-light to observer the photosphere, and two telescopes with narrow-band filters (H-alpha line at 656.3 nm and Ca II K line at 393.37 nm) to monitor the chromosphere, where solar eruptive phenomena can be detected. The image file format is FITS.

Keyword(s): USET ; Sunspot ; Photosphere ; Chromosphere
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