| 单词 | astro-2 |
| 释义 | > as lemmasAstro-2 (The name of) each of two investigative missions (in 1990 and 1995 respectively) during which astrophysical observations were made from space using instruments carried on space shuttles. Usually with identifying numeral, as Astro-1, Astro-2. ΚΠ 1984 Vistas in Astron. 27 402 A number of rocket launches and a flight of the Astro-1 Space Shuttle payload are planned. 1990 Sci. News 15 Dec. 372/2 Even more convincing evidence for black holes may arise when researchers compare the extreme-ultraviolet spectra of galaxies and quasars with Astro's X-ray spectra of the same objects. 1995 Astrophysical Jrnl.: Lett. 454 L6/2 Silicon carbide coatings on the primary mirror..improved its performance relative to Astro-1 by more than a factor of 2 for the flight of Astro-2. 2009 J. A. Rumerman NASA Hist. Data Bk. iv. 754 Guest investigators also used the Astro-2 telescopes for their own observations. < as lemmas |
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