... 哈佛-德雷伯恒星光谱序 Harvard-Draper sequence 哈佛分类法 Harvard classification 哈雷环形山 Halley ...
基于30个网页-相关网页
N a classification of stars based on the characteristic spectral absorption lines and bands of the chemical elements present 哈佛分类法; 根据现有化学元素的吸收线谱及光带对星星加以分类 →see spectral type
应用推荐