ボイジャー2号の記事

$The 9" refractor used by Galle to discover Neptune$

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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William Lassell, the discoverer of Triton

トリトン海王星を回る逆行の氷世界

トリトン海王星逆行軌道カイパーベルト

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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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