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オーロラ

7 件の記事

When observed in white-light coronagraph imagery, CMEs sometimes resemble a light bulb, possessing a bright bulb-like outer shell surrounding a dark void and compact inner structure.[1]

コロナ質量放出（CME）が地球に与える影響と太陽活動のメカニズム

コロナ質量放出CME太陽フレア地磁気嵐
2026年8月11日続きを読む →
Earth's night-side upper atmosphere appears from the bottom as bands of afterglow illuminating the troposphere in orange with silhouettes of clouds at the top, and the stratosphere in white and blue at the top of the middle. Next, the mesosphere (pink area) extends to the orange and faintly green line of the lowest airglow, at about one hundred kilometres at the edge of space and the lower edge of the thermosphere (invisible). Continuing with green and red bands of auroras stretching over several hundred kilometres.

オーロラの科学夜空を彩る光の正体と宇宙のメカニズム

オーロラ北極光南極光太陽風
2026年8月11日続きを読む →
The top image shows the formation mechanism of a normal proton aurora while the bottom image shows the formation mechanism of a patchy aurora.

火星のオーロラ地球とは異なる発生メカニズムと観測の歴史

火星オーロラ磁場MAVEN
2026年8月11日続きを読む →
Artist's impression of solar wind flow around Earth's magnetosphere

太陽風の正体と宇宙への影響太陽から吹き出すプラズマの嵐

太陽風コロナプラズマ磁気圏
2026年8月11日続きを読む →
Eos by Evelyn De Morgan (1895)

エオスギリシャ神話における暁の女神

エオスギリシャ神話暁の女神オーロラ
2026年8月11日続きを読む →
Nightglow is since 2022 considered the most likely candidate for the ashen light, visible as bright line along the limb of Venus in this visible light near-infrared image. The surface and its features, like the visible Ovda Regio plateau of Aphrodite Terra as the dark patch, is much less discernible by the human eye, though some people reporting ashen light might be seeing the surface due to higher sensitivity in the spectrum that the surface glows.

金星の「灰色の光」とは？400年にわたる謎と最新の科学的解明

金星灰色の光ashen light天文学
2026年8月11日続きを読む →
Artist's impression of solar wind flow around Earth's magnetosphere

太陽風の正体太陽から吹き出すプラズマの流れとその影響

太陽風コロナプラズマ磁気圏
2026年8月10日続きを読む →