4ºA Information Technology student name:
Astronomy
Astronomy (from the Greek words astron ( στρον) "star" and nomos (νόμος) "law") is theἄ
scientific study of celestial objects (such as stars, planets, comets, and galaxies) and phenomena that
originate...
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4ºA Information Technology student name:
Astronomy
Astronomy (from the Greek words astron ( στρον) "star" and nomos (νόμος) "law") is theἄ
scientific study of celestial objects (such as stars, planets, comets, and galaxies) and phenomena that
originate outside the Earth s atmosphere (such as the cosmic background radiation).
It is concerned with the
evolution, physics, chemistry, meteorology, and motion of celestial objects, as well as the formation and
development of the universe.
Astronomy is one of the oldest sciences.
Astronomers of early civilizations performed methodical observations of the night sky,
and astronomical artifacts have been found from much earlier periods.
However, the invention of the telescope was required before
astronomy was able to develop into a modern science.
Historically, astronomy has included disciplines as diverse as astrometry, celestial
navigation, observational astronomy, the making of calendars, and even astrology, but professional astronomy is
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