BENGKULU, RAKYATBENGKULU.COM – A planet, sayarah or nabagreha in Old Javanese, is an astronomical object that orbits a star or the remnants of a star large enough to have its own gravity.
Apart from not being too big to create thermonuclear fusion and having cleared the region around its orbit and being full of massive stars passing close to the sun.
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Where their close proximity causes their gravity to attract each other and produce tides on the surface of the sun (planetesimals).
The word planet has been around for a long time and has historical, scientific, mythological and religious connections. In ancient civilizations, planets were seen as eternal or representative of the gods. As science advances, humanity’s view of the planet changes.
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In 2006, the International Astronomical Union adopted an official resolution defining the planets within the Solar System.
This definition has been praised but also criticized and is still debated by numerous scientists, because it does not include planetary mass objects determined by their position or orbital objects.
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Eight planetary bodies discovered before 1950 are still considered planets by the modern definition, where a number of celestial bodies such as Ceres, Pallas, Juno, Vesta and every object in the Sun’s asteroid belt are found.
Meanwhile, Pluto is said to be the first discovered trans-Neptunian object, which was previously considered a planet by the scientific community is no longer a problem.
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Since the beginning of the space age, close-up observations from spacecraft have shown that Earth and other planets exhibit signs of volcanism, storms, tectonics, and hydrology.
Generally, planets are divided into two main types, namely large, low-density gas giants and small, rocky terrestrial giants.
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2024-01-16 08:41:00
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