to become an astronaut, you nned to study astrophysics, take aeronautical engineering and should have encyclopaedic knowledge
No, but you would need one that offers that course of study. Not all do.
An astronomer
An astronomer or astrophysicist would study the moon, stars, and planets - of course they may study more than just those.
A telescope is the instrument an astronomer uses to study matter in space.
a helio astronomer is a person who study the sun. it is also called heliophysicist.
The proper name for the study of stars is astronomy. A person who studies stars is an astronomer.
Astronomer's are people (scientists) who study celestial bodies. So by profession an astronomer uses a telescope and not a microscope.
Astronomers
Astronomer
This study is called astronomy, and an astronomerwill undertake it.Astrophysicists also study these topics.A Geologist, Exogeologist or Theoretical Planetologist will study planets.
Antonym means opposite, and not all things have opposites. Astronomy is the study of celestial objects, and you can't really anti-study anything. The most you can do is simply to ignore it. But study and not-study aren't opposites.
An astronomer.