HD 93963 is a binary star in the constellation Leo Minor. At an apparent magnitude of +9.18, it is not visible to the naked eye. Parallax measurements give a distance of and for the primary and secondary component, respectively. Interstellar extinction causes the system's magnitude to be reduced by magnitudes.
Characteristics The primary, HD 93963 A, is main sequence star of class G0V. The star has a mass 1.11 times that of the Sun and a radius 1.043 times solar. It irradiates 25% more luminosity than the Sun and has an effective temperature of , giving it a yellowish-white hue as typical of G-type stars.
The companion, HD 93963 B, is a red dwarf star of class M5V. The star has 0.16 times the mass and 0.20 times the radius of the Sun, with a cool effective temperature of . It has a projected separation of from the primary.
Planetary system Two planets have been discovered around the primary star in 2022 with the joint use of transit photometry and radial velocity.
HD 93963 A b is a super-Earth with an orbital period of 1.04 days. It orbits at a semi-major axis of 0.0209 AU and shows an inclination of 86.21 degrees. The planet has a radius of Earth radii. Its mass estimate sits at Earth masses.
HD 93963 A c is a sub-Neptune planet that completes an orbit every 3.65 days. Its radius measures Earth radii and its mass measures Earth masses.
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