| 单词 | sao star catalog |
| 释义 | SAO Star CatalogSAO Star CatalogA general whole-sky catalog issued by the Smithsonian Astrophysical Observatory, Washington, in 1966. It lists positions and proper motions of 258 997 stars usually down to a limiting magnitude of 9 (epoch 1950.0), there being a uniform number of stars for each area of sky. An associated and highly accurate computer-plotted Star Atlas was published in 1968. |
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英语词典包含2567994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。