单词 | limb-darkening |
释义 | > as lemmaslimb-darkening limb-darkening n. Astronomy the apparent darkening of the face of the sun towards its edges. ΘΚΠ the world > the universe > sun > sunlight > [noun] > limb-darkening limb-darkening1931 1931 Monthly Notices Royal Astron. Soc. XCI. 893 I(x) is of the form a−mx (limb darkening linearly proportional to distance from the centre). 1938 Astrophysical Jrnl. 87 45 (heading) The effect of an adiabatic layer upon solar limb darkening. 1962 Sci. Surv. 3 103 Visual observations..show that the sun's disc is brightest at the centre, becoming gradually dimmer towards the outer edge, or limb. This phenomenon is known as limb darkening, and is due to the fact that we look less and less deeply into the hotter layers of the sun as we view its surface more obliquely. < as lemmas |
随便看 |
|
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。