astronomy

Meaning

1. The study of the physical universe beyond the Earth's atmosphere, including the process of mapping locations and properties of the matter and radiation in the universe.
2. (obsolete) Astrology.

Synonyms

uranology

astrology

heavenly bodies

observatory

solstice

Pronounced as (IPA)

/əˈstɹɑn.ə.mi/

Etymology

From Middle English astronomie, astronemy, from Old French astronomie, equivalent to astro- + -nomy. Displaced native Old English tungolcræft.

Sentences

He chose the subject 'Radio Astronomy and the Structure of the Universe'.

Consequently , parts of the L-band are protected radio astronomy allocations worldwide .