| 单词 | secchi, pietro angelo |
| 释义 | Secchi, Pietro AngeloSecchi, Pietro Angelo(pyĕ`trō än`jālō sĕk`kē), 1818–78, Italian astronomer, a Jesuit priest. He was director of the observatory of the Gregorian Univ., Rome, from 1849. He is known especially for his work in spectroscopy and was a pioneer in classifying stars by their spectra. In 1860 he made some notable solar-eclipse photographs. His works include a star catalog (1867). |
| 随便看 |
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。