![]() ![]() The second theory is the Huntian (Celestial sphere) theory during 100 BCE. The first theory is the Gaitian (celestial lid) theory, mentioned in an old mathematical text called Zhou bei suan jing in 100 BCE, in which the Earth is within the heaven, where the heaven acts as a dome or a lid. The Chinese had multiple theories of the structure of the universe. The 12 months came about by dividing the ecliptic into 12 equal segments of 30 degrees and were given zodiacal constellation names which were later used by the Greeks. This was developed as the appearance of the full moon was visible every month. Babylonians were able to make use of periodic appearances of the Moon to generate a time source - a calendar. They used methodological observations of the patterns of planets and stars movements to predict future possibilities such as eclipses. Babylonian interpretation īabylonians thought the universe revolved around heaven and Earth. In biblical cosmology, the firmament is the vast solid dome created by God during his creation of the world to divide the primal sea into upper and lower portions so that the dry land could appear. The ancient Hebrews, like all the ancient peoples of the Near East, believed the sky was a solid dome with the Sun, Moon, planets and stars embedded in it. Researchers initially suggested the disc is an artefact from the Bronze Age Unetice culture, although a later dating to the Iron Age has also been proposed. 1600 BCE, based on the provenance provided by the looters who found it. ![]() The disc has been attributed to a site in present-day Germany near Nebra, Saxony-Anhalt, and was originally dated by archaeologists to c. The Nebra Sky Disc is a bronze dish with symbols that are interpreted generally as the Sun or full moon, a lunar crescent, and stars (including a cluster of seven stars interpreted as the Pleiades). ![]() ![]() ( February 2023)Įarly astronomy Navagraha Īround the 3rd millennium BC, Hindu astrology is developed, based on the Navagraha, nine heavenly bodies and deities that influence human life on Earth: the Sun, the Moon, the then known five planets, plus the ascending and descending nodes of the Moon. This scientific method of deriving a model of the Solar System is what enabled progress towards more accurate models to have a better understanding of the Solar System that we are in. The use of the Solar System model began as a resource to signify particular periods during the year as well as a navigation tool which was exploited by many leaders from the past.Īstronomers and great thinkers of the past were able to record observations and attempt to formulate a model that accurately interprets the recordings. New models of the Solar System are usually built on previous models, thus, the early models are kept track of by intellectuals in astronomy, an extended progress from trying to perfect the geocentric model to eventually using the heliocentric model of the Solar System. Then books and written records became the main source of information that expressed the way the people of the time thought of the Solar System. The models of the Solar System throughout history were first represented in the early form of cave markings and drawings, calendars and astronomical symbols. The historical models of the Solar System began during prehistoric periods and are updated to this day. The planets are not shown at the appropriate distance from the Sun. Jupiter's diameter is about 11 times that of the Earth's and the Sun's diameter is about 10 times Jupiter's. Outward from the Sun, the planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Approximate sizes of the planets relative to each other. ![]()
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