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sunspots    音标拼音: [s'ʌnsp,ɑts]


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英文字典中文字典相关资料:


  • Sunspot - Wikipedia
    Sunspots are temporary spots on the Sun's surface that are darker than the surrounding area They are regions of reduced surface temperature caused by concentrations of magnetic flux that inhibit convection
  • Sunspots - NASA Science
    Sunspots are the visible component of active regions, areas of intense and complex magnetic fields on the Sun that are the source of solar eruptions Sunspots can be seen on the Sun’s photosphere, or visible surface of the Sun
  • Sunspot regions | Solar activity | SpaceWeatherLive. com
    On this page you'll find an overview of all the visible sunspot regions on the Sun together with their properties, images and the chances on solar
  • Sunspots: What are they, and why do they occur? - Space. com
    Sunspots are dark, planet-size regions of strong magnetic fields on the surface of the sun They can spawn eruptive disturbances such as solar flares and coronal mass ejections (CMEs) These
  • Sunspots - Definition, Formation, Solar Cycle, and Effects
    Sunspots are dark regions on the Sun caused by magnetic fields Learn how they form, their structure, solar cycle, and effects on Earth
  • Sunspots Solar Cycle - NOAA NWS Space Weather Prediction Center
    Sunspots appear in a wide variety of shapes and forms The darkest area of a sunspot (also the first to be observed) is called the umbrae As the sunspot matures (becomes more intense), a less dark, outlying area of well-defined fibril-like structure develops around the umbrae - called penumbra
  • Current Solar Activity Sunspots – Real-Time Sky Data
    Explore today's real-time solar data, including live sunspot images, solar spectrum updates, and nautical twilight times Stay updated on current sky activity with accurate solar observations
  • The Sun and Sunspots - National Weather Service
    Sunspots are areas where the magnetic field is about 2,500 times stronger than Earth's, much higher than anywhere else on the Sun Because of the strong magnetic field, the magnetic pressure increases while the surrounding atmospheric pressure decreases
  • What causes sunspots? - Astronomy Magazine
    Sunspots are dark regions on the Sun's surface (photosphere) approximately the size of Earth They are formed by strong magnetic fields that emerge from the Sun's convective interior, becoming
  • Sunspots - Solar and Heliospheric Observatory
    The images are provided by the Solar Dynamics Observatory (SDO) mission Status updates are provided at SDO's JSOC Emergency Resources page





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