Physicist, space plasma theory&simulation and solar radio astronomy, from Lingen in NW Germany, interests in IT, sci-fi, sports: running, table tennis, cycling
839 days ago
Four #moons in one picture: One of Earth, and three of #Jupiter, from top left to bottom right: #Io, (Jupiter), #Ganymede, #Callisto. Panasonic FZ45, f/4.2, f=70.3mm (391mm equiv.), ISO 80, 2s.
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