Jupiter

他のすべての惑星を合わせた質量の2倍以上。

測定値

5.27 au. 横断するには:

2026-10-25までの1年間に外向きに進んだ速さでのボイジャー1号（JPL Horizons）。走行条件：休みなし、給油なし。

Juno — Operating — NASA reported a close pass of Thebe on 2026-05-01 and new Io results in July 2026 (science.nasa.gov/mission/juno, checked 2026-10-26). Its funded extension ran to September 2025. There since 2016-07-04.
Voyager 1 — Flew past on 5 March 1979.
Voyager 2 — Flew past on 9 July 1979.
Pioneer 10 — The first to fly past, on 4 December 1973.
Pioneer 11 — Flew past on 3 December 1974.
New Horizons — Flew past on 28 February 2007, on its way out.

Planets, Pluto, the Moon and Jupiter's big moons: astronomy-engine (Don Cross, MIT). Other moons: JPL Planetary Satellite Mean Elements. Ceres, Eris, Haumea, Makemake: JPL Small-Body Database. NASA/JPL-Caltech.

英語版カードからAI（Opus 5.5）により翻訳。数値、名称、出典は変更していません。

惑星

他のすべての惑星を合わせた質量の2倍以上。

5.27 au. 横断するには:

2026-10-25までの1年間に外向きに進んだ速さでのボイジャー1号（JPL Horizons）。走行条件：休みなし、給油なし。

Juno — Operating — NASA reported a close pass of Thebe on 2026-05-01 and new Io results in July 2026 (science.nasa.gov/mission/juno, checked 2026-10-26). Its funded extension ran to September 2025. There since 2016-07-04.
Voyager 1 — Flew past on 5 March 1979.
Voyager 2 — Flew past on 9 July 1979.
Pioneer 10 — The first to fly past, on 4 December 1973.
Pioneer 11 — Flew past on 3 December 1974.
New Horizons — Flew past on 28 February 2007, on its way out.

Planets, Pluto, the Moon and Jupiter's big moons: astronomy-engine (Don Cross, MIT). Other moons: JPL Planetary Satellite Mean Elements. Ceres, Eris, Haumea, Makemake: JPL Small-Body Database. NASA/JPL-Caltech.