speech on astronomy ?
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Good Morning Principal ,teachers and my Dear friends i want to say few words on astronomy ....
Astronomy is a natural science. It is the study of everything outside the atmosphere of Earth.
It studies celestial objects (such as stars, galaxies, planets, moons, asteroids, comets and nebulae) and processes (such as supernovae explosions, gamma ray bursts, and cosmic microwave background radiation). This includes the physics, chemistry of those objects and processes.
The word astronomy comes from the Greek words astron which means star and nomos which means law.[1] A person who studies astronomy is called an astronomer.
Astronomy is one of the oldest sciences. Ancient people used the positions of the stars to navigate, and to find when was the best time to plant crops. Astronomy is very similar to astrophysics. A related subject, physical cosmology, is concerned with studying the Universe as a whole,[2] and the way the universe changed over time. Astronomy is not the same as astrology, the belief that the patterns the stars and the planets may affect human lives.
Since the 20th century there have been two main types of astronomy, observational and theoretical astronomy. Observational astronomy uses telescopes and cameras to observe or look at stars, galaxies and other astronomical objects. Theoretical astronomy uses maths and computer models to predict what should happen. The two often work together, the theoretical predicts what should happen and the observational shows whether the prediction works.
Thank you
Astronomy is a natural science. It is the study of everything outside the atmosphere of Earth.
It studies celestial objects (such as stars, galaxies, planets, moons, asteroids, comets and nebulae) and processes (such as supernovae explosions, gamma ray bursts, and cosmic microwave background radiation). This includes the physics, chemistry of those objects and processes.
The word astronomy comes from the Greek words astron which means star and nomos which means law.[1] A person who studies astronomy is called an astronomer.
Astronomy is one of the oldest sciences. Ancient people used the positions of the stars to navigate, and to find when was the best time to plant crops. Astronomy is very similar to astrophysics. A related subject, physical cosmology, is concerned with studying the Universe as a whole,[2] and the way the universe changed over time. Astronomy is not the same as astrology, the belief that the patterns the stars and the planets may affect human lives.
Since the 20th century there have been two main types of astronomy, observational and theoretical astronomy. Observational astronomy uses telescopes and cameras to observe or look at stars, galaxies and other astronomical objects. Theoretical astronomy uses maths and computer models to predict what should happen. The two often work together, the theoretical predicts what should happen and the observational shows whether the prediction works.
Thank you
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18th century map of the sky
Astronomy is a natural science. It is the study of everything outside the atmosphere of Earth.
It studies celestial objects (such as stars, galaxies, planets, moons, asteroids, comets and nebulae) and processes (such as supernovae explosions, gamma ray bursts, and cosmic microwave background radiation). This includes the physics, chemistry of those objects and processes.
The word astronomy comes from the Greek words astron which means star and nomos which means law.[1] A person who studies astronomy is called an astronomer.
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