Question
Consider the statements about HD 63433d: 1.
Astronomers recently unveiled the discovery of this Earth-like planet. 2. It orbits a sun-like star called HD 63433. 3. It’s also the closest Earth-sized planet discovered so far. Which of the statements given above is/are correct?Solution
Astronomers recently unveiled the discovery of an Earth-like planet, younger and closer than any previously identified, named HD 63433d. It is an Earth-like exoplanet that orbits a sun-like star called HD 63433 (also known as TOI 1726). The star is about 73 light years away from the sun and is part of the group of stars moving together that make up the constellation Ursa Major. The star HD 63433 shares similarities with our sun in size and type but is significantly younger, at roughly 400 million years old. It is the smallest confirmed exoplanet, younger than 500 million years old. It’s also the closest Earth-sized planet discovered so far, and it’s about 400 million years old.
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