Con. Discoveries

Their main discoveries in astronomy

Arab Noticed that the moon changed it's location each 28 days and return back to same location after 28 days also, so they divided the moon into 28 segments called "Moon stages"..

They decided that the portable part from the Ether which contains the starts and seven famous plants..

They called three internal plants " The moon, Mercury, Venus" The Under Plants..

While "Mars, Jupiter, Saturn" The Highness Plants..

Also, they called the group of stars The Dragon like:

Ursa Minor

Big Dipper

Cassiopeia

Hercules

Cancer



Also, They choose special name for some stars like:
Altair
Betelguese
Fomalhout
Algol
Rigl
Adra
Alcor
Zaurak