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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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