ログイン
a period of 12 months based on which a company, government or individual does financial reporting or budgeting
会計年度
a period of time in history or someone's life, during which significant events happen
時代
a hypothetical structure that connects regions of space-time that are far apart
ワームホール
(of the moon) to gradually decrease in its visible illuminated surface as it progresses from full to new moon
減少する
(of the moon) to progressively display a larger illuminated section until it turns into a full moon
成長する
the theory that adds the notion of time to that of a three-dimensional space
時空
a usually small meteor that burns with a bright light when entering the earth's atmosphere
流れ星
a glowing cloud of gas and dust in outer space, often the result of a star explosion or formation
星雲
a small celestial body that becomes visible as a meteor upon entrance into the atmosphere of the earth
隕石
the branch of physics that studies celestial objects and phenomena in the universe, such as stars, galaxies, and cosmic radiation
天体物理学
the colored lights, mainly green and red, in the sky seen primarily near the northern magnetic pole
オーロラ
the colored lights, mainly green and red, in the sky seen primarily near the southern magnetic pole
オーロラオーストラリス
the time as measured at Greenwich, London, on the line of 0° longitude, used to calculate the time across the globe
グリニッジ標準時
the calendar introduced by Pope Gregory XII in 1582, as a modification for the Julian Calendar, presently used in many parts of the world
グレゴリオ暦
(astronomy) the celestial zone in the sky where the sun, moon, and planets appear to move, traditionally divided into twelve equal segments, each associated with a distinct name and symbol
星座
