出典:Wikipedia
●注意
お探しになった「aurora borealis」は、Weblio英和辞典にはまだ収録されていませんが、「aurora borealis」に近い「Aurora (astronomy)」について、『ウィキペディア英語版』からの引用を下記に表示しています。
出典:『Wikipedia』 (2011/06/21 14:14 UTC 版)
An aurora (plural: auroras or aurorae) is a natural light display in the sky, particularly in the polar regions, caused by the collision of charged particles directed by the Earth's magnetic field. An aurora is usually observed at night and typically occurs in the ionosphere. It is also referred to as a polar aurora or, collectively, as polar lights. These phenomena are commonly visible between 60 and 72 degrees north and south latitudes, which place them in a ring just within the Arctic and Antarctic polar circles. Auroras do occur deeper inside the polar regions, but these are infrequent and often invisible to the naked eye.
ひる日なか
the blazing sun
太陽向点.
the solar apex
the midnight sun
the evening glow
the rising sun
the setting sun
the setting sun
the setting sun