出典:Wiktionary
出典:『Wiktionary』 (2026/02/22 02:01 UTC 版)
Serpens
出典:Wikipedia
出典:『Wikipedia』 (2011/06/21 23:04 UTC 版)
Serpens ("the Serpent", Greek Ὄφις) is a constellation of the northern hemisphere. It was one of the 48 constellations listed by the 2nd century astronomer Ptolemy and it remains one of the 88 modern constellations defined by the International Astronomical Union.