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2022年5月5日 NGC 3521: Galaxy in a Bubble Image Credit & Copyright: Mark Hanson and Mike Selby Explanation: Gorgeous spiral galaxy NGC 3521 is a mere 35 million light-years away, toward the northern springtime constellation Leo. Relatively bright in planet Earth’s sky, NGC 3521 is easily vis
2021年04月02日 NGC 3521: Galaxy in a Bubble Image Credit & Copyright: Acquisition – Eric Benson, Processing – Dietmar Hager Explanation: Gorgeous spiral galaxy NGC 3521 is a mere 35 million light-years away, toward the constellation Leo. Relatively bright in planet Earth’s sky, N
