| 单词 | solar prominence |
| 释义 | > as lemmassolar prominence b. Astronomy. A major upward eruption of incandescent gas in the sun's corona, classified as either active (short-lived and with a rapidly changing structure) or quiescent (long-lived) (also solar prominence); a similar phenomenon on another star.At first also called a protuberance (protuberance n. 1b). ΘΚΠ the world > the universe > sun > solar activity > [noun] > solar prominence streamer1697 solar prominence1852 sun pillar1853 filamenta1869 solar protuberance1869 plume1885 panache1886 1852 Edinb. New Philos. Jrnl. 52 210 After the disappearance of the last direct rays of the sun behind the margin of the moon,..rose-shaped prominences from two to three minutes in height, dart, as it were, from the circumference of our satellite. 1866 Sci. Amer. 30 June 217/2 The appearance in the photographs of the solar eclipse of 1860 of solar prominences invisible to the human eye. 1903 A. M. Clerke Probl. Astrophysics 118 Professor Hale's daylight photographs of prominence-spectra. 1940 G. Gamow Birth & Death of Sun i. 8 The features of solar activity most familiar to the general public are the so-called sunspots..and solar prominences, the eruptions of hot and luminous gases that sometimes rise to a height of hundreds of thousands of kilometres above the Sun's surface. 1981 S. Mitton Daytime Star ix. 139 Prominences are usually photographed at the limb of the Sun, where they stand out as flame-like structures against a velvet black sky. 1999 C. Pellegrino & G. Zebrowski Star Trek Next Generation: Dyson Sphere vi. 108 The off-center star swelled to a screenscape of fiery prominences and magnetic trenches. < as lemmas |
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