必应词典为您提供apparent-brightness的释义,un. 表观亮度;视亮度;表面亮度; 网络释义: 表现亮度;视在亮度;
Apparent magnitude is the brightness of an object as it appears to an observer onEarth. TheSun’sapparent magnitude is −26.7, that of the fullMoonis about −11, and that of the bright starSirius, −1.5. The faintest objects visible through theHubble Space Telescopeare of (approximately...
magnitude n. 1.[U] 巨大,广大 2.[U] 重大,重要 3.[U] 量;大小;强度;音量 4.[C]【天】星等(指星的亮度) 5.[C]【地】震级 apparent adj. 1.清晰可见的 2.显然的,明明白白的 3.表面上的;貌似(真实)的;未必真实的 4.(对王位、爵号、产业等)具有当然继承权的 5.【天】从地球表面所看到的...
apparent magnitude 英[əˈpærənt ˈmæɡnitju:d] 美[əˈpærənt ˈmæɡnɪˌtud] 释义 视星等 行业词典 天文学 视星等从地球上观测到的天体的星等。
3.The fifth brightest star in the night sky and about 25 light-years away, this blue star is a yardstick for judging the apparent magnitude, or brightness, of stars. 4.Vega is how the apparent magnitude of stars—their brightness—is measured. ...
the perspective of Earth; humans can only know what objects in space look like from observing them from Earth's perspective. Objects in space that give off or reflect light are observed on the apparent brightness scale, which is also known as apparent magnitude. What is apparent brightness?
Combining this known intrinsic brightness with the newly established distance, and accounting for interstellar absorption, astronomers estimate that the supernova peaked with an apparent brightness between magnitude -7.9 and -7.1. Fireworks in Lupus: this year marks the 1,000th anniversary of the brigh...
必应词典为您提供apparent-magnitude的释义,un. 视星等; 网络释义: 视量;以上讨论的是视星等;视星等级;
Define apparentness. apparentness synonyms, apparentness pronunciation, apparentness translation, English dictionary definition of apparentness. adj. 1. Readily seen; visible: The animal's markings were immediately apparent. 2. Readily understood; clear
We measure the apparent brightness of celestial bodies in magnitude. The brighter a planet shines, the lower the magnitude value. Negative numbers indicate that the planet is very easy to spot in the night sky, even with ambient light. The planets also have phases, like the Moon, but these...