Astronomy is one of the oldest sciences in the world and also one of the greatest scientific inventions by human being. Astronomy is a wonderful scientific study that let us know about the atmosphere in outer space and movement of planets and galaxies in the solar system. Astronomy was invented by people even before the birth of Jesus Christ and at that time people used to observe night sky with naked eyes from tall buildings, trees and high grounds. Slowly the concept of astronomy was developed and slowly people invented telescope. In its early days, observation and prediction of movement of celestial objects were the main parts of astronomy but with the advancement of science and technology, the scope of working on astronomy has been broadened significantly. Scientists around the world now practice different types of astronomy.
Apart from observation and prediction on movement of celestial objects, astronomy now focuses on various things. Telescope was the only astronomical instrument used by scientists in old days but now various instruments and technologies are used in different types of astronomy. With the use of various instruments and technologies people has gradually learned to measure the size and distance of sun and moon from the earth and has also made calculation about next solar and lunar eclipse easier for scientists. On the other hand, some special types of astronomy has made it possible for scientist to measure the quantity of ultraviolet ray and gamma ray in the troposphere of the earth.
Large number of scientists all over the world are working on different types of astronomy in the astronomical observatories because there is lot more to know about the space and cosmos. Apart from observational astronomy, people are also concentrating on subjects like radio astronomy, infrared astronomy, ultraviolet astronomy, gamma-ray astronomy, optical astronomy, celestial mechanics, astrometry and also focusing on theoretical astronomy.
Types of Astronomy
# Theoretical astronomy
# Observational astronomy
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