Question

explanation of planet term​

Answer 1

The definition of planet, since the word was coined by the ancient Greeks, has included within its scope a wide range of celestial bodies. Greek astronomers employed the term asteres planetai (ἀστέρες πλανῆται), "wandering stars", for star-like objects which apparently moved over the sky. Over the millennia, the term has included a variety of different objects, from the Sun and the Moon to satellites and asteroids.

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Answer 2

Answer:

✫The Planet✫

• ➦A Planet is a celestial body which revolves around the sun and receives heat and light from it.
• ➦All the Eight planets of the solar system revolves around the sun in elliptical Paths known as orbits.
• ➦The Planets also rotate on their own axis. Except Venus and Uranus, all other planets rotate in the same direction in which they revolve.
• ➦Time taken to complete one revolution depends on the distance of the planet from the sun.
• ➦Since Mercury is nearest to the sun, it takes only about 88 Days to complete one revolution.
• ➦The Amount of heat received by a planet depends on the distance of the planet from the sun.

❂Some Extra Information❂

↻Mercury is the planet closest to the sun, so we can assume that it is the hottest planet of our solar system but it is not true.

↬ While the temperature on the planet Mercury can reach 465°C, it can also drop down its to frigid temperatures of - 184°C. There is such a big variation in Mercury's temperature because the planet has no atmosphere, and it spins relatively slowly compared to some of the other planets.

↻Venus, the second closest planet to the sun, has the highest average temperatures of any planet in our solar system, regularly reaching temperatures over 460°C.

↬ Venus is so hot because of its proximity to the sun and its thick atmosphere. By thick clouds like Carbon Dioxide and Sulphur Dioxide atmosphere of Venus is composed.

↬ This Creates a strong green house effect, trapping the sun's heat. As the planet in our solar system get further away from the sun, they generally get colder. So the Neptune, the Eighth planet is the coldest planet of our solar system.