jupiter Astronomy

8 个科学问题 · 天文 Astronomy

本页目录

木星的强辐射带对探测器有什么威胁?

How do Jupiter's strong radiation belts threaten spacecraft?

木星磁场极强,捕获的大量带电粒子在周围形成强大的辐射带,剂量远超地球范艾伦带。探测器穿越时会遭受电子器件损伤和数据错误,因此任务需限制靠近时间并加厚屏蔽。朱诺号等探测器特意采用极轨道以降低辐射暴露。
Jupiter's very strong magnetic field traps charged particles into radiation belts far harsher than Earth's Van Allen belts. Probes crossing them suffer electronic damage and data errors, so missions limit close passes and add shielding. Juno uses a polar orbit to reduce radiation exposure.
难度 专业 · 适合 高中(15-18) CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source

苏宜,《天文学新概论》第5版,科学出版社

Su Yi, Introduction to Astronomy, 5th ed., Science Press

#木星 #辐射带 #磁场

伽利略发现的四颗木星卫星叫什么?其中哪颗可能有地下海?

What are the four Jovian moons Galileo discovered, and which may hide a subsurface ocean?

它们是木卫一 Io、木卫二 Europa、木卫三 Ganymede、木卫四 Callisto;木卫二冰壳之下被认为存在液态海洋,是搜寻地外生命的重点目标。
They are Io, Europa, Ganymede, and Callisto; Europa is thought to hide a liquid ocean beneath its ice shell, making it a prime target in the search for life.
难度 进阶 · 适合 小学高段(9-12) CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source

苏宜,《天文学新概论》第5版,科学出版社

Su Yi, Introduction to Astronomy, 5th ed., Science Press

#木星 #卫星 #木卫二

木星的伽利略卫星为什么受关注?

Why are Jupiter's Galilean moons so interesting?

伽利略在1610年发现的四颗大卫星——木卫一至木卫四,各具特色:木卫一火山活跃,木卫二冰壳下疑似有海洋,木卫三最大且自带磁场,木卫四布满撞击坑。它们像一个小行星系统,是研究卫星演化的天然实验室。
The four large moons Galileo found in 1610, Io through Callisto, are each distinctive: Io is volcanically active, Europa likely hides an ocean under ice, Ganymede is the largest with its own magnetic field, and Callisto is heavily cratered. They resemble a mini planetary system and are natural labs for moon evolution.
难度 进阶 · 适合 大众 CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source

苏宜,《天文学新概论》第5版,科学出版社

Su Yi, Introduction to Astronomy, 5th ed., Science Press

#木星 #伽利略卫星 #木卫二

为什么说木星是一颗『失败的恒星』?

Why is Jupiter called a 'failed star'?

木星的成分和太阳一样以氢氦为主,也是靠引力收缩发热,但它质量还不够大,核心温度达不到点燃持续核聚变的程度。如果质量再大约80倍,它就能成为一颗恒星。所以木星像是没条件点亮的『迷你太阳』。
Jupiter, like the Sun, is made mostly of hydrogen and helium and radiates heat from gravitational contraction, but it is not massive enough for its core to ignite sustained fusion. About 80 times its mass would be needed to become a star. So Jupiter is like a mini-Sun that never lit up.
难度 进阶 · 适合 大众 CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source

苏宜,《天文学新概论》第5版,科学出版社

Su Yi, Introduction to Astronomy, 5th ed., Science Press

#木星 #核聚变 #褐矮星

木星的磁场为什么比地球强得多?

Why is Jupiter's magnetic field far stronger than Earth's?

木星内部有巨大的金属氢层,加上快速自转,像发电机一样产生太阳系最强的行星磁场,磁层范围可容纳上千个地球。
Jupiter's vast layer of metallic hydrogen, combined with rapid rotation, acts like a dynamo producing the strongest planetary magnetic field in the solar system, with a magnetosphere that could contain thousands of Earths.
难度 进阶 · 适合 初中(12-15) CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source

苏宜,《天文学新概论》第5版,科学出版社

Su Yi, Introduction to Astronomy, 5th ed., Science Press

#木星 #磁场 #金属氢

木星算失败的恒星吗?它离成为恒星还差什么?

Is Jupiter a failed star, and what would it need to become one?

木星主要由氢和氦组成,但质量只有太阳的约千分之一,远未达到氢核聚变所需的核心温度和压力,因此只是行星而非恒星。
Jupiter is mostly hydrogen and helium, but at only about 1/1000 of the Sun's mass it never reached the core temperature and pressure needed for sustained hydrogen fusion, so it is a planet, not a star.
难度 进阶 · 适合 大众 CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source

苏宜,《天文学新概论》第5版,科学出版社

Su Yi, Introduction to Astronomy, 5th ed., Science Press

#木星 #核聚变 #质量

木星目前已知有多少颗卫星?

How many moons are known around Jupiter today?

截至近年统计,木星已确认卫星超过 90 颗,是太阳系中卫星最多的行星之一,其中多数很小且轨道奇特。
As of recent counts, Jupiter has over 90 confirmed moons, among the most of any planet, though most are tiny with unusual orbits.
难度 入门 · 适合 大众 CC BY 4.0 · 来源待核验 · Source pending review
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出处备注:本题原挂出处与答案内容不符,已撤回;具体书目待补,暂不展示来源。

本题原挂出处与答案内容不符,已撤回;具体书目待补。

Previous citation withdrawn as unsupported for this answer; a specific source is pending.

#木星 #卫星 #数量

木星上的大红斑到底是什么?

What exactly is Jupiter's Great Red Spot?

大红斑是一个已持续数百年的巨型反气旋风暴,比地球还大,由木星内部热量驱动,而非靠太阳加热。
The Great Red Spot is a giant anticyclonic storm that has lasted centuries, larger than Earth, driven by Jupiter's internal heat rather than solar heating.
难度 入门 · 适合 大众 CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source

苏宜,《天文学新概论》第5版,科学出版社

Su Yi, Introduction to Astronomy, 5th ed., Science Press

#木星 #风暴 #大气