You don't "need" any school for astronomy. However, if you want to be seriously considered for any jobs in the field, you should minimally get a bachelor's degree.
Astronomy is not a 'school' subject. you would need to go to a university to specialise in astronomy.
Astronomy
No.
Rizal Technological University in Mandaluyong City is the first and currently the only school that offers courses in astronomy such as B.S. Astronomy Technology and MS in Astronomy
Astronomy, Astrology, Math, and Medicene
Mainly astronomy.
probably chemistry or biology or astronomy
None. You can start out in astronomy with a relatively small telescope, and no licenses are required.
Astronomy and Astrophysics.
you need to have a teachers degree
You need to graduate university not high school to get a degree
he studied astronomy & mathematics, astrology, and natural philosophy