Astronomy was first studied by ancient civilizations. It's impossible to pinpoint exactly who "first" studied astronomy because the earliest known civilizations all observed the stars and celestial bodies for various purposes.

Here are some examples:

* Ancient Babylonians: They developed sophisticated systems for tracking the movements of planets and stars, creating detailed star catalogs and predicting eclipses.

* Ancient Egyptians: They used the stars for navigation and timekeeping, aligning their pyramids with celestial objects.

* Ancient Greeks: They made important contributions to the theoretical understanding of astronomy, with philosophers like Ptolemy developing geocentric models of the universe.

* Ancient Chinese: They developed their own unique star charts and recorded astronomical events like supernovae and comets.

So, while it's impossible to say definitively who "first" studied astronomy, it was a field of interest for various ancient civilizations around the world.