GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A cluster of planets
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Planets that orbit a star (or stars)
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A star (or stars) that orbit a large planet
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A group of extraterrestrial objects (such as asteroids) that orbit a planet
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Detailed explanation-1: -Planets that orbit around other stars are called exoplanets. All of the planets in our solar system orbit around the Sun. Planets that orbit around other stars are called exoplanets.
Detailed explanation-2: -Our solar system is just one specific planetary system-a star with planets orbiting around it. Our planetary system is the only one officially called “solar system, ‘’ but astronomers have discovered more than 3, 200 other stars with planets orbiting them in our galaxy. That’s just how many we’ve found so far.
Detailed explanation-3: -We say that planets orbit stars, but that’s not the whole truth. Planets and stars actually orbit around their common center of mass. This common center of mass is called the barycenter. Barycenters also help astronomers search for planets beyond our solar system!
Detailed explanation-4: -Generally speaking, planetary systems describe systems with one or more planets, although such systems may also consist of bodies such as dwarf planets, asteroids, natural satellites, meteoroids, comets and planetesimals as well as discernable features including circumstellar disks.