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天王星

13 件の記事

Cutaway illustrations of the interior of the giant planets. Jupiter is shown with a rocky core overlaid by a deep layer of metallic hydrogen.

巨大惑星の正体ガス惑星と氷惑星、そして未知のメガアースまで

巨大惑星ガス惑星氷惑星木星
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The 9" refractor used by Galle to discover Neptune

海王星太陽系最果ての青い氷巨星

海王星太陽系氷巨星ボイジャー2号
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Heliocentric positions of the five interstellar probes (squares) and other bodies (circles) until 2030, with launch and flyby dates. Markers denote positions on 1 January of each year, with every fifth year labelled.Plot 1 is viewed from the north ecliptic pole, to scale.Plots 2 to 4 are third-angle projections at 20% scale.In the SVG file, hover over a trajectory or orbit to highlight it and its associated launches and flybys.

ボイジャー2号太陽系外へと旅する人類史上唯一の惑星探査機

ボイジャー2号NASA惑星探査星間空間
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Cutaway illustrations of the interior of the giant planets. Jupiter is shown with a rocky core overlaid by a deep layer of metallic hydrogen.

巨大惑星の正体ガス巨星と氷巨星、そして未知の系外惑星たち

巨大惑星ガス巨星氷巨星木星
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Gas giants lack a defined surface; the atmosphere becomes progressively denser closer to the core.

ガス巨星の正体木星・土星から系外惑星まで徹底解説

ガス巨星木星土星天王星
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These cutaways illustrate interior models of the giant planets. The planetary cores of gas giants Jupiter and Saturn are overlaid by a deep layer of metallic hydrogen, whereas the mantles of the ice giants Uranus and Neptune are composed of heavier elements.

天王星と海王星氷巨星の正体と形成の謎

氷巨星天王星海王星ガス巨星
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Position of Uranus (marked with a cross) on 13 March 1781, the date of its discovery

天王星の謎に迫る横倒しの氷巨星が持つ特異な世界

天王星氷巨星ウィリアム・ハーシェル太陽系
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占星術における惑星の象徴と役割古典から現代まで

占星術惑星ホロスコープ古典的惑星
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Retrograde orbit: the satellite (red) orbits in the direction opposite to the rotation of its primary (blue/black)

逆行運動のメカニズム天文学における回転と公転の不思議

逆行運動順行公転周期自転軸
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Retrograde orbit: the satellite (red) orbits in the direction opposite to the rotation of its primary (blue/black)

逆行運動のメカニズム天文学における回転と公転の方向性

逆行順行天文学公転方向
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惑星の分類内惑星と外惑星の違いとは

惑星内惑星外惑星地球
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Hubble's sharpest view of Mars: Although the ACS “Fastie finger” intrudes, it achieved a spatial scale of 5 miles, or 8 kilometres per pixel at full resolution.

火星観測の歴史古代の記録から最新の宇宙望遠鏡まで

火星天文学観測史地動説
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