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Sky quality measurement

auteur: Sebastian Voltmer/Novapix

référence: a-cst58-00162

Image Size 300 DPI: 47 * 31 cm

Winter sky (with Sirius, Procyon, Orion and Taurus) ‪and SQM‬-measurement. January 2020.

Keywords for this photo:

2020 - AMATEUR ASTRONOMER - ASTRONOMY - CANIS MAJOR - CANIS MINOR - HORIZON - HUMAN - LANDSCAPE - LIGHT POLLUTION - MAN - MEASURE - NIGHT - OBSERVATION - OBSERVER - ORION - PERSON - PROCYON - SCIENTIFIC INSTRUMENT - SIRIUS - STAR - STARRY SKY - TAURUS - TREE - WINTER -