出典:Wikipedia
出典:『Wikipedia』 (2011/06/24 11:35 UTC 版)
Astronomy is a natural science that deals with the study of celestial objects (such as stars, planets, comets, nebulae, star clusters and galaxies) and phenomena that originate outside the Earth's atmosphere (such as the cosmic background radiation). It is concerned with the evolution, physics, chemistry, meteorology, and motion of celestial objects, as well as the formation and development of the universe.
astronomy
astronomy―uranology
a formidable knowledge of astronomy
>geologist.
天文台.
elementary lessons in astronomy