UNIVERSE
SURVEY OF THE PLANETS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Planets’ move compared to other objects in the sky; stars don’t
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Planets twinkle; stars don’t
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Planets are on the ecliptic; stars aren’t
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Planets move westward in the sky at night; stars move eastward
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Detailed explanation-1: -The stars change their position but can be seen only after a long time due to substantial distance. Planets in orbits spin on their own axis and change their positions constantly. Stars consist of matter like Hydrogen, Helium, and other light elements.
Detailed explanation-2: -It says a planet must do three things: It must orbit a star (in our cosmic neighborhood, the Sun). It must be big enough to have enough gravity to force it into a spherical shape. It must be big enough that its gravity cleared away any other objects of a similar size near its orbit around the Sun.
Detailed explanation-3: -Answer: Stars twinkle at night due to the atmospheric refraction but planets don’t. Stars are made up of Hydrogen and Helium while planets are made up of solids, liquids, gases, or a combination thereon. Stars have high temperature while planets have a low temperature.
Detailed explanation-4: -Stars are celestial bodies made up of gases; they are huge in size and have very high temperatures. Planets are the celestial bodies that do not have their own heat and light. They have their own heat and light, which they emit in large amounts. They are lit by the light of stars.
Detailed explanation-5: -In general, the more distant an object, the less it moves in your field of view for a certain, fixed actual speed. The stars (even the closest ones) are vastly farther away than the mountains, so their motion in our field of view is miniscule.