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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
  • What Is a Sunspot? Dark Patches on the Sun Explained
    Sunspots are cooler, magnetically disrupted patches on the Sun that follow an 11-year cycle and can trigger solar storms affecting Earth’s technology
  • 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
  • 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
  • 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
  • What Are Sunspots? - timeanddate. com
    Powerful magnetic fields inside the Sun collide to create darker, cooler patches on the solar surface Sunspots range from a few kilometers wide to more than 100 times the size of Earth
  • Current Sunspots on the Sun - sky-tonight. com
    Below the map, you'll find a live list of all currently visible sunspots Each entry includes the NOAA sunspot number, magnetic classification, flare risk, and physical properties such as area and spot count
  • Sunspot | Solar Flares, Magnetic Fields Sunspots | Britannica
    sunspot, vortex of gas on the surface of the Sun associated with strong local magnetic activity Spots look dark only by contrast with the surrounding photosphere, which is several thousand degrees hotter The dark centre of a spot is called the umbra; the outer, lighter ring is the penumbra





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