词条日珥

描述: 日珥（prominences, 或filaments）是由于太阳周围的磁场而形成的等离子体环。这些现象是暂时的，但可能会持续数周或数月，在日食期间经常可以拍到。一个典型的日珥延伸超过数千公里（km）；记录中最大的日珥估计超过800,000公里长，大约是一个太阳半径的长度。就像许多太阳现象一样，人们也认为其他恒星也会展示出日珥现象。

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其他语言版本

阿拉伯语: الشواظ الشمسي
德语: Sonnenprotuberanz
英语: Solar Prominence
西班牙语: Protuberancia solar
法语: Protubérance solaire
意大利语: Protuberanza solare
日语: プロミネンス (外部链接)
韩语: 태양홍염
巴西葡萄牙语: Proeminência solar
繁体中文: 日珥

相关媒体

The Sun as red disk with bright patches and long dark strands. Several small wispy features protrude from the disk's edge

H-alpha image of the Sun's chromosphere

图注： This false-color image was captured with a 10-cm telescope at the Big Bear Solar Observatory (BBSO) in the United States in July 2002. It depicts the full disk of the Sun using the H-alpha emission line of hydrogen. When observed in this spectral line, the Sun's chromosphere appears particularly prominent due to hydrogen atoms emitting light at the specific wavelength. This emission produces a distinctive red color, making features such as spicules (jets of plasma that look hair-like) and plage (bright patches in the chromosphere) highly visible. Several small solar prominences can be seen protruding from the edge of the solar disk. When prominences (also known as filaments) cross the face of the disk they appear as dark threads caused by the cooler material in the prominence absorbing light. The chromosphere is also visible in the violet part of the solar spectrum due to ionized calcium showing emissions in these wavelengths.
来源： Big Bear Solar Observatory (BBSO)/New Jersey Institut of Technology (NJIT) 来源链接

License: PD 公共领域图标