什么是日冕?
What is the solar corona?
日冕是太阳大气最外层的稀薄高温等离子体,温度高达上百万摄氏度,远高于表面,只有在日全食时或借助日冕仪才能观测到。
The corona is the Sun's outermost, tenuous, million-degree plasma layer—hotter than its surface—visible during a total eclipse or with a coronagraph.
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
独立核验依据 · Independent verification: 核验依据 2 ISBN 9787030620477(豆瓣书目条目: 天文学新概论)
#日冕 #高温
什么是太阳中微子难题,后来如何被解决?
What was the solar neutrino problem, and how was it resolved?
早期探测到的太阳中微子数量只有理论预测的三分之一左右,被称为太阳中微子难题。后来发现中微子具有质量并会发生味振荡,标准太阳模型因此得到证实。
Early detectors captured only about a third of the solar neutrinos predicted by theory, a discrepancy known as the solar neutrino problem. It was resolved when experiments showed that neutrinos have mass and oscillate between flavors, confirming the standard solar model.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注:此条未指向带版次的可引用著作(通识性内容、机构文件或未展开的英文书名),本库不提供独立书目出处;如需精确引用,需由编辑补全具体篇目与版次。
萨德伯里中微子观测站(SNO)
Sudbury Neutrino Observatory (SNO)
#太阳中微子 #中微子振荡 #标准太阳模型 #萨德伯里
太阳的质子-质子链反应与碳氮氧循环有何区别?
How do the proton-proton chain and the CNO cycle differ in the Sun?
质子-质子链是太阳这类较小质量恒星的主要产能机制,氢核逐级直接融合。碳氮氧循环以碳、氮、氧为催化剂加速氢聚变,在质量更大的恒星中占主导,并且对温度更加敏感。
The proton-proton chain is the main energy source in Sun-like stars, fusing hydrogen nuclei directly step by step. The CNO cycle uses carbon, nitrogen, and oxygen as catalysts and dominates in more massive stars, being far more sensitive to temperature.
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
独立核验依据 · Independent verification: 核验依据 2 ISBN 9787030620477(豆瓣书目条目: 天文学新概论)
#质子-质子链 #碳氮氧循环 #恒星核聚变 #产能
太阳耀斑和日冕物质抛射有何不同?
How do solar flares and coronal mass ejections differ?
耀斑是太阳大气中磁场重联释放的瞬时电磁辐射爆发,在X射线和射电波段最为明显。日冕物质抛射则是大量带电粒子与磁场结构被抛入太空,可能引发地磁暴。
A flare is a sudden burst of electromagnetic radiation from magnetic reconnection in the solar atmosphere, most visible in X-rays and radio waves. A coronal mass ejection is a huge cloud of charged particles and magnetic field launched into space, which can trigger geomagnetic storms on Earth.
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
独立核验依据 · Independent verification: 核验依据 2 ISBN 9787030620477(豆瓣书目条目: 天文学新概论)
#太阳耀斑 #日冕物质抛射 #磁场重联 #地磁暴
什么是太阳黑子?
What are sunspots?
太阳黑子是太阳光球上温度较低、显得较暗的区域,由强磁场抑制对流造成,数量会随约11年的太阳活动周期增减。
Sunspots are cooler, darker patches on the Sun's surface caused by strong magnetic fields suppressing convection; their number rises and falls on an ~11-year cycle.
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
独立核验依据 · Independent verification: 核验依据 2 ISBN 9787030620477(豆瓣书目条目: 天文学新概论)
#太阳黑子 #磁场
什么是太阳风?
What is the solar wind?
太阳风是太阳大气持续向外喷射的带电粒子流(质子和电子),速度可达每秒数百公里,会影响地球磁场并产生极光。
The solar wind is a stream of charged particles (protons and electrons) flowing outward from the Sun at hundreds of km/s, influencing Earth's magnetic field and causing auroras.
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
独立核验依据 · Independent verification: 核验依据 2 ISBN 9787030620477(豆瓣书目条目: 天文学新概论)
#太阳风 #极光
太阳的能量来自哪种反应?
What reaction produces the Sun's energy?
太阳的能量来自核心处的氢核聚变,四个氢核聚变成一个氦核并释放能量。这个过程每秒将约6亿吨氢转化为氦。
The Sun's energy comes from hydrogen fusion in its core, where four hydrogen nuclei combine into one helium nucleus and release energy. About 600 million tons of hydrogen are converted into helium every second.
难度 进阶 · 适合 小学低段(6-8)
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
独立核验依据 · Independent verification: 核验依据 2 ISBN 9787030620477(豆瓣书目条目: 天文学新概论)
#核聚变 #氢 #氦 #太阳能量
为什么太阳会发光发热?
Why does the sun shine?
太阳核心的氢核聚变释放巨大能量,以光和热向外辐射。
Fusion of hydrogen in the core radiates energy as light and heat.
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
独立核验依据 · Independent verification: 核验依据 2 ISBN 9787030620477(豆瓣书目条目: 天文学新概论)
#核聚变 #氢 #能量
为什么日全食时能看到太阳的日冕?
Why can we see the Sun's corona during a total eclipse?
日全食时月球恰好遮住明亮的太阳光球层,相比之下暗弱的日冕才得以显现。日冕是太阳最外层的高温稀薄大气,温度可达上百万开尔文。
During a total eclipse the Moon blocks the bright solar photosphere, allowing the faint corona to become visible. The corona is the Sun's outermost, hot and tenuous atmosphere, reaching temperatures of over a million kelvin.
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
独立核验依据 · Independent verification: 核验依据 2 ISBN 9787030620477(豆瓣书目条目: 天文学新概论)
#日全食 #日冕 #光球 #太阳大气
太阳未来会变成什么样?
What will the Sun become in the future?
约50亿年后,太阳核心的氢将耗尽,它会膨胀成一颗红巨星,可能吞没水星和金星。再过数十亿年,外层物质抛散形成行星状星云,核心留下一颗致密的白矮星,逐渐冷却变暗。这是类似太阳质量恒星的典型归宿。
In about 5 billion years the Sun will exhaust the hydrogen in its core and swell into a red giant, possibly engulfing Mercury and Venus. After more billions of years it will shed its outer layers as a planetary nebula, leaving a dense white dwarf that slowly cools and fades. This is the typical fate of a Sun-like star.
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
独立核验依据 · Independent verification: 核验依据 2 ISBN 9787030620477(豆瓣书目条目: 天文学新概论)
#太阳 #红巨星 #演化
太阳耀斑爆发会对地球造成什么影响?
How can solar flares affect Earth?
太阳耀斑是太阳表面突发的强烈能量释放,伴随高速带电粒子和强X射线。强烈的耀斑可能干扰地球无线电通信、使卫星姿态失控,并威胁宇航员安全。极端情况下还可能引发地磁暴,损坏电网设备。
A solar flare is a sudden burst of intense energy from the Sun's surface, accompanied by high-speed charged particles and strong X-rays. Strong flares can disrupt radio communications, disturb satellites and endanger astronauts. In extreme cases they trigger geomagnetic storms that damage power grids.
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
独立核验依据 · Independent verification: 核验依据 2 ISBN 9787030620477(豆瓣书目条目: 天文学新概论)
#太阳 #耀斑 #地磁暴
什么是太阳耀斑?
What is a solar flare?
太阳耀斑是太阳表面局部突然释放的巨大能量爆发,伴随高能粒子和X射线,可能干扰地球无线电通信与卫星。
A solar flare is a sudden burst of energy on the Sun's surface, sending high-energy particles and X-rays that can disrupt Earth's radio and satellites.
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
独立核验依据 · Independent verification: 核验依据 2 ISBN 9787030620477(豆瓣书目条目: 天文学新概论)
#太阳耀斑 #太阳活动
太阳内部是如何进行核聚变的?
How does nuclear fusion work inside the Sun?
在太阳核心约1500万摄氏度和极高密度下,氢原子核通过质子-质子链反应聚变成氦,质量亏损转化为巨大能量,这就是阳光的来源。
In the core at ~15 million °C and extreme density, hydrogen nuclei fuse into helium via the proton–proton chain; the lost mass becomes energy—the source of sunlight.
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
独立核验依据 · Independent verification: 核验依据 2 ISBN 9787030620477(豆瓣书目条目: 天文学新概论)
#核聚变 #质子质子链
太阳为什么看起来是黄色的?
Why does the Sun appear yellow?
太阳本身发出的光接近白色,其表面温度约5500摄氏度。由于地球大气对蓝光的散射强于红光,我们看到的太阳常偏黄,尤其在接近地平线时更显橙红。
The Sun actually emits nearly white light, with a surface temperature around 5,500 degrees Celsius. Earth's atmosphere scatters blue light more strongly than red, so the Sun often looks yellow to us, and even more orange near the horizon.
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
独立核验依据 · Independent verification: 核验依据 2 ISBN 9787030620477(豆瓣书目条目: 天文学新概论)
#太阳光 #大气散射 #颜色 #色温
太阳对地球为什么非常重要?
Why is the Sun so important to Earth?
太阳是地球光和热的来源,驱动天气、洋流与植物光合作用,几乎支撑了地球上所有生命与能量。
The Sun provides Earth's light and heat, driving weather, ocean currents, and photosynthesis—supporting nearly all life and energy on Earth.
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
独立核验依据 · Independent verification: 核验依据 2 ISBN 9787030620477(豆瓣书目条目: 天文学新概论)
#太阳 #地球生命
太阳到底有多大?
How big is the Sun?
太阳的直径约140万公里,大约是地球的109倍,质量约占整个太阳系的99.86%。
The Sun is about 1.4 million km across—roughly 109 Earths wide—and holds about 99.86% of the solar system's mass.
难度 入门 · 适合 小学低段(6-8)
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
独立核验依据 · Independent verification: 核验依据 2 ISBN 9787030620477(豆瓣书目条目: 天文学新概论)
#太阳大小 #质量
太阳黑子是什么?
What are sunspots?
太阳黑子是太阳光球层上温度较低、看起来较暗的区域,因局部强磁场抑制了对流散热而形成。黑子温度约4000摄氏度,比周围约5500摄氏度的光球略低。黑子数量会随太阳活动周期增减。
Sunspots are cooler, darker patches on the Sun's photosphere, formed where strong local magnetic fields suppress the convection that carries heat outward. They have a temperature of about 4000 degrees Celsius, lower than the surrounding photosphere at about 5500 degrees. Their number rises and falls with the solar cycle.
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
独立核验依据 · Independent verification: 核验依据 2 ISBN 9787030620477(豆瓣书目条目: 天文学新概论)
#太阳 #太阳黑子 #磁场
太阳为什么会发光发热?
Why does the Sun shine and give off heat?
太阳核心温度高达约1500万摄氏度,氢原子核在此聚变成氦核,损失的极小质量按质能方程转化为巨大能量。这些能量以光和热的形式从内部传到表面并向太空辐射。每秒约有6亿吨氢参与这种核聚变反应。
At the Sun's core, temperatures reach about 15 million degrees Celsius, where hydrogen nuclei fuse into helium and the tiny lost mass becomes enormous energy via E=mc2. This energy travels outward as light and heat and radiates into space. About 600 million tons of hydrogen undergo fusion every second.
难度 入门 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-04
来源 · Source
贝特(Bethe),《Energy Production in Stars》,Physical Review,1939 (DOI: 10.1103/physrev.55.103);NASA 太阳物理
Bethe, 'Energy Production in Stars', Physical Review, 1939, DOI: 10.1103/physrev.55.103; NASA solar physics
独立核验依据 · Independent verification: 核验依据 1 Crossref DOI 10.1103/physrev.55.103
#太阳 #核聚变 #恒星
太阳还能“活”多久?
How much longer will the Sun 'live'?
太阳目前约46亿岁,正处于中年;它还能稳定燃烧约50亿年,之后会膨胀成红巨星,最终留下一颗白矮星。
The Sun is about 4.6 billion years old; it will shine stably for roughly another 5 billion years before swelling into a red giant and ending as a white dwarf.
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
独立核验依据 · Independent verification: 核验依据 2 ISBN 9787030620477(豆瓣书目条目: 天文学新概论)
#太阳寿命 #红巨星
太阳是一颗什么类型的恒星?
What type of star is the Sun?
太阳是一颗光谱型为G型的黄矮星(G2V),正处于稳定的“主序星”阶段,靠核心氢核聚变发光。
The Sun is a G-type main-sequence star (G2V, a yellow dwarf), stably fusing hydrogen in its core.
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
独立核验依据 · Independent verification: 核验依据 2 ISBN 9787030620477(豆瓣书目条目: 天文学新概论)
#太阳 #黄矮星
太阳的主要成分是什么?
What is the Sun mainly made of?
太阳质量的约73%是氢,约25%是氦,其余2%为氧、碳、铁等较重元素。这种以氢氦为主的组成与宇宙整体的元素丰度基本一致。太阳本质上是一颗由等离子体构成的大质量气态恒星。
About 73 percent of the Sun's mass is hydrogen and about 25 percent is helium, with the remaining 2 percent made of heavier elements like oxygen, carbon and iron. This hydrogen-helium dominance matches the overall elemental abundance of the universe. The Sun is essentially a massive gaseous star made of plasma.
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
独立核验依据 · Independent verification: 核验依据 2 ISBN 9787030620477(豆瓣书目条目: 天文学新概论)
#太阳 #氢 #氦