noun
Edgeworth-Kuiper belt object
Astronomical term for icy bodies orbiting beyond Neptune in the Edgeworth-Kuiper belt.
冥王星はエッジワースカイパーベルト天体の一つに分類される。
Pluto is classified as one of the Edgeworth-Kuiper belt objects.
From English 'Edgeworth-Kuiper belt' + 天体 (celestial body). Named after astronomers Kenneth Edgeworth and Gerard Kuiper.