标签: sunspot

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太阳黑子与光桥

2023年5月17日 Sunspot with Light Bridge Image Credit & Copyright: Mark Johnston Explanation: Why would a small part of the Sun appear slightly dark? Visible is a close-up picture of sunspots, depressions on the Sun’s surface that are slightly cooler and less bright than the rest of the Sun. The Sun’s complex magnetic field creates these cool re...

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太空站凌越活跃的太阳

2022年4月11日 A Space Station Crosses a Busy Sun Image Credit & Copyright: Wang Letian (Eyes at Night) Explanation: Typically, the International Space Station is visible only at night. Slowly drifting across the night sky as it orbits the Earth, the International Space Station (ISS) can be seen as a bright spot several times a year from many locations. The...

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斜塔与活跃红日

2022年4月1日 Leaning Tower, Active Sun Image Credit & Copyright: Antonio Tartarini Explanation: The natural filter of a hazy atmosphere offered this recognizable architecture and sunset view on March 27. Dark against the solar disk, large sunspots in solar active regions 2975 and 2976 are wedged between the Duomo of Pisa and its famous Leaning Tower. Only ...

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AR2835:光球层上的黑子群

2021年07月02日 AR2835: Islands in the Photosphere Image Credit & Copyright: Michael Teoh, Heng Ee Observatory, Penang, Malaysia Explanation: Awash in a sea of incandescent plasma and anchored in strong magnetic fields, sunspots are planet-sized dark islands in the solar photosphere, the bright surface of the Sun. Found in solar active regions, sunspots loo...