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Astronomisk tusmørke
Astronomisk tusmørke er, når solen er mellem 12 og 18 grader under horisonten.
Horisonten er ikke synlig, og kun de klare stjerner kan ses.
Astronomisk tusmørke er, når solen er mellem 12 og 18 grader under horisonten.
Horisonten er ikke synlig, og kun de klare stjerner kan ses.
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