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Gold Barz
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AKA solar systems rare?
Since there's only one star called Sol, yes!Gold Barz said:AKA solar systems rare?
A planet is a celestial body that orbits around a star, is large enough to have its own gravity, and has cleared its orbit of other objects.
There are a few methods for detecting planets around stars, including the transit method, radial velocity method, and direct imaging. The transit method involves observing a decrease in a star's brightness as a planet passes in front of it. The radial velocity method measures slight changes in a star's motion caused by the gravitational pull of a planet. Direct imaging involves capturing an actual image of the planet.
The most common types of planets found around stars are gas giants, like Jupiter and Saturn, and rocky planets, like Earth and Mars. However, there are also other types such as ice giants and super-Earths.
The habitable zone, also known as the Goldilocks zone, is the region around a star where a planet can have liquid water on its surface. This zone depends on the size and temperature of the star, and is the most likely place for life to exist on a planet.
As of January 2022, there have been over 4,500 confirmed exoplanets (planets outside our solar system) discovered around stars. However, it is estimated that there could be billions of planets in our own Milky Way galaxy alone.