Change Area:    Sky conditions:    Since: Note: < 2006 takes time.   Until:
Visual:    SQM:    SQM-L:   
Sky condition colours:   : 1, no stars,   : 2, very bad,   : 3, bad,   : 4, moderate,   : 5, good,   : 6, very good,   : 7, natural sky;
Red Diamonds: Lightmeter position;     Home - Verein Kuffner-Sternwarte