What is Astronomy? Definition....
WHAT IS ASTRONOMY?
Definition:
Astronomy: Astronomy is the natural
science in which study of non-earthly object is involved like stars, sun,
extraterrestrial object, moon, galaxy, gas, dust, universe and phenomena
accruing in universe. According to NASA definition of astronomy is study of
stars, planet and space.
There are two major field of
astronomy, Observational astronomy and Theoretical astronomy.
Observational
Astronomy:
In observational astronomy observe the planet,
stars, sun, and astronomical object by use of telescope. In this field
scientist is observe the astronomical object by the help of telescopes and
electromagnetic spectrum.
Theoretical Astronomy:
In theoretical astronomy study of stars,
planet, Galaxy, and astronomical object by use of some theoretical concepts like gravity, law of motion, theory
of relativity, concept of mathematics, principle of quantum mechanics and
physics etc.
Some Field of Astronomy:
- · Planetary
Astronomy
- ·
Astrobiology
- ·
Cosmology
- ·
Galactic
Astronomy
- ·
Stellar
Astronomy
- ·
Astrophysics
- · Astrochemistry
Planetary Astronomy:
Planetary astronomy is the study of planets
and study of physical and chemical properties of planet by use of observational
astronomy and theoretical astronomy .Also in this field study of planet is done
by the space exploration and telescopic astronomy.
Astrobiology:
Astrobiology is the science in
which study of life on the earth and space.
Cosmology: In cosmology
study of universe also we can study in cosmology how to universe is formed by
use of different analysis of radiation by the object.
Galactic Astronomy:
In galactic astronomy study of
galaxy present in universe and study of how to this galaxy's is formed.
Generally in galactic astronomy we can study about our Milky Way galaxy.
Stellar Astronomy:
In Stellar astronomy study of stars
and black holes. Also study how to stars is formed and how to stars is destroy
and study of black holes and its properties, phenomena occurring into it.
AstroChemistry:
In Astrochemistry study of chemistry
of astronomical object to understand astronomical phenomena.
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