Most of the brighter stars were assigned their first systematic names by the German astronomer Johann Bayer in 1603, in his star atlas Uranometria.
Most of the constellations are ancient, though the concept of assigning the entire sky, not just the asterisms, to constellations is relatively recent. The current boundaries were set up by Eugene Delporte in 1930.
A Greek astronomer by the name of Ptolemeus, or Ptolemy who had named many of the stars with Greek names and organizing them accordingly in star catalogs.
Edit : The correct answer is probably Johann Bayer.
Johann Bayer.
Johann Bayer was the first astronomer who named the stars assigned to constellations and gave them Greek letters. He began this system in 1603.
the greeks did that
It was Johann Bayer.
greek gods
Most constellations were named hundreds of years ago, in greek and latin.
The constellations are named from Greek, Roman, and Middle Eastern cultures. The names were derived from their animals, gods, goddesses, and the characters of their stories.
The Greeks really named quite a few.
Johann Bayer introduced this method for naming stars in his Uranometria star catalog of 1603. It remains a popular method today.
Ancient Civilization has Greek mythology that they believe in.
I'm not exactly positive on this but they are based on gos.
Greeks.
Constellations are named for mythological creatures from stories.