On the left is M97 in the constellation Ursa Major, also known in the northern hemisphere as the Owl Nebula.
左边是M 97在大熊座，又称北半球的夜枭星云。
On the right is its visual counterpart, the southern Owl Nebula in the constellation Hydra, cataloged as PLN 283+25.1.
右边是与其视觉互补的南夜枭星云，在长蛇座，编号为PLN 283+25.1。
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