ESA/Webb, NASA, CSA, STScI, P. Tiranti, H. Melin, M. Zamani (ESA/Webb) (CC BY 4.0)
A planet knocked on its side, where each pole gets decades of daylight and then decades of night.
Uranus is an ice giant: beneath its hydrogen and helium atmosphere lies a thick layer of water, methane and ammonia ices. Methane in its atmosphere gives it a pale blue-green colour.
Its axis is tilted so far that it rolls around the Sun on its side. Each pole gets about 42 years of continuous sunlight followed by 42 years of darkness. It was the first planet discovered with a telescope, by William Herschel in 1781.
データ源
ツールとレッスンは学習のための単純化モデルを使用します。航法、ミッション計画またはどんな作戦決定にも使用してはなりません。証明書は無料で認証されていません。 教育用コンテンツの免責事項を読む