What is the difference between an astronomer, astronomist, astrologist and astronaut?
ASTRONOMER: A specialist in the natural science called astronomy.
Astronomy is for studying all about near and far, and big and small
space bodies. In my opinion, Earth Science is an area in astronomy
for ISS astronomers.
ASTRONOMIST is a synonym for astronomer.
ASTROLOGIST is a synonym for astrologer. At any time, an
astrologer is a novice astronomer, who is unable to cope up with
the advances in astronomy. Astrologers apply scientific surmises
about space bodies, for predicting one's life characteristics, for the
future. They are unable incorporate new discoveries in astronomy,
immediately, owing to the fact that astrology is based on
referential statistics, relating to individuals/ events of the past.
Some discoveries might be detrimental to the traditional
Copernicus, Galileo and Kepler were responsible for making
astronomy a natural science. Astrology was dissociated from
astronomy but not vice versa.
ASTRONAUT is one who travels in spacecrafts that leave our
atmosphere, to outer space.