TOI-2107 b: A Nearby Star and Its Giant Planet

TOI-2107 is a star located 772 light-years away. It has a mass of 0.961 solar masses, a radius of 0.932 solar radii, a temperature of 5630 K, and an age of 4 billion years. Its reported radius estimate is smaller than the Sun's, and its reported temperature is cooler than the Sun's. One planet orbits this host.

That planet is TOI-2107 b, a Jupiter-like world discovered by the transit method in 2024. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. TOI-2107 b has an orbital period of 2.45 days, a mass of 264 Earth masses, and a radius of 13.6 Earth radii. Its reported radius estimate is larger than Earth's, and its reported mass estimate is larger than Earth's. TOI-2107 b's mean density is 0.581 g/cm³, 0.105 times Earth's. The phrase Jupiter-like describes a planet whose radius exceeds four times Earth's radius.