A Super-Earth is an extrasolar planet with a mass higher than Earth’s, but substantially below the mass of the Solar System’s ice giants Uranus and Neptune, which are 15 and 17 Earth masses respectively.

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A rogue planet, also known as an interstellar planet, nomad planet, free-floating planet, orphan planet, wandering planet or starless planet, is a planetary-mass object that orbits the galaxy directly.

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A Mini-Neptune is a planet of up to 10 Earth masses, less massive than Uranus and Neptune, which have about 14.5 and 17, respectively.

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A giant star is a star with substantially larger radius and luminosity than a main-sequence (or dwarf) star of the same surface temperature.

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T Tauri stars (TTS) are a class of variable stars named after their prototype – T Tauri. They are found near molecular clouds and identified by their optical variability and strong chromospheric lines.

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