Astronomy is a positive
science that includes the discovery, observation, interpretation and recording of all objects
and phenomena in space. Before 17th century, astronomy, which worked
only to observe and interpret the positions and motion capabilities
of observable celestial bodies due to technological inadequacies,
after advanced its agenda in all space with the advancement of
technology.
Detailed Definition:
Astronomy, which aims to
investigate first our galaxy and then the whole space in the light of
the physics and chemistry sciences that have developed since the 19th
century, it also includes to investigate structures and movements of
celestial bodies, the formation of galaxies and the chemical analysis
of this formation, and the distances and brightness levels of these
objects and phenomena. There are 4 main sub-branches of today's
contemporary astronomy. These are;
Astrophysics:
Examines the harmony and application of defined laws of physics in
space.
Astrometry:
It deals with mapping the locations of space objects and their
distances from each other.
Astrogeology:
It deals with the elucidation and understanding of the structure and
reserves of materials in space.
Astrobiology:
Examines possible extraterrestrial life.
All
these sub-domains contain more of an observable method besides being
experimental due to he lack of possibilities we have today in regards
with technology.
Etymology:
‘Astron’ (star) –
From Ancient Greek
‘Nomos’
(rule, law) – From Ancient Greek
Sample Sentence(s):
''Astronomy has expanded to
include astrophysics, the application of physical and chemical
knowledge to an understanding of the nature of celestial objects and
the physical processes that control their formation, evolution, and
emission of radiation.''
