HD 93963 A and Its Two Known Planets

HD 93963 A is a G0 V star, a Sun-like main-sequence dwarf, located 269 light-years away. Its reported mass estimate is 1.11 solar masses, larger than the Sun's, and its reported radius estimate is 1.04 solar radii, also larger than the Sun's. The star's reported temperature is 5990 K, hotter than the Sun's, and its age is 1.4 billion years. Two planets have been found orbiting this host.

HD 93963 A b is an Earth-like planet discovered by transit in 2022. Its radius estimate is 1.47 Earth radii, larger than Earth's, and its mass is 2.8 Earth masses. It completes an orbit in 1.04 days. Its mean density is 4.86 g/cm³, 0.882 times Earth's.

HD 93963 A c is a Neptune-like planet, also discovered by transit in 2022. Its radius estimate is 3.12 Earth radii, larger than Earth's, and its mass estimate is 18.4 Earth masses, larger than Earth's. Its orbital period is 3.65 days. Its mean density is 3.34 g/cm³, 0.606 times Earth's.

Among the listed planets, HD 93963 A b has the shortest year, at 1.04 days, the smallest radius, at 1.47 Earth radii, and the smallest reported mass, at 2.8 Earth masses. HD 93963 A c has the longest year, at 3.65 days, the largest radius, at 3.12 Earth radii, and the largest reported mass, at 18.4 Earth masses.