| 单词 | cosmic time |
| 释义 | cosmic time (once / 319441 pages) n WORD FAMILY cosmic time: cosmic times USAGE EXAMPLESSeeing how these patterns vary over cosmic time could reveal changes in dark energy. Nature(Sep 27, 2016) The first leg stretches back all the way to the first instants of cosmic time. Salon(Sep 01, 2016) Some study humanity’s achievements during its existence, which has been barely a blink in cosmic time. Washington Post(Oct 02, 2015) n the time covered by the physical formation and development of the universe Hypo|Hyper sidereal time measured by the diurnal motion of stars solsticeeither of the two times of the year when the sun is at its greatest distance from the celestial equator equinoxeither of two times of the year when the sun crosses the plane of the earth's equator and day and night are of equal length day, sidereal daythe time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day sidereal yearthe time for the earth to make one complete revolution around the sun, relative to the fixed stars sidereal hour1/24 of a sidereal day sidereal monthperiod between successive conjunctions with a star, 27.322 days June 21, midsummer, summer solsticeJune 21, when the sun is at its northernmost point winter solsticeDecember 22, when the sun is at its southernmost point March equinox, spring equinox, vernal equinoxMarch 21 September equinox, autumnal equinox, fall equinoxSeptember 22 time the continuum of experience in which events pass from the future through the present to the past |
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