"Astromy" is not a recognized word in the English language or any known scientific field.

It's possible you meant one of the following:

* Astronomy: The study of celestial objects and phenomena, including stars, planets, galaxies, and the universe as a whole.

* Astrology: A belief system that uses the positions of celestial bodies to predict and understand human affairs.

Please double-check the spelling and context of the word you are referring to.