Messier 46, open cluster, planetary nebula, NGC 2437, NGC 2438, Puppis constellation, stars, light-years, Giuseppe Donatiello, astronomy, space

Messier 46, open cluster, planetary nebula, NGC 2437, NGC 2438, Puppis constellation, stars, light-years, Giuseppe Donatiello, astronomy, space
Messier 46, open cluster, planetary nebula, NGC 2437, NGC 2438, Puppis constellation, stars, light-years, Giuseppe Donatiello, astronomy, space
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