HD 64440

HD 64440 is a G-type main-sequence star located approximately 123 light-years away in the constellation Camelopardalis. The star is similar to our Sun in terms of its spectral type (G5V), indicating a yellow dwarf star.

Properties: HD 64440 is slightly less massive and slightly less luminous than the Sun. It has an effective temperature of around 5,600 Kelvin. Spectroscopic analysis indicates a slightly lower metallicity compared to the Sun, meaning it has a lower proportion of elements heavier than helium. The star's age is estimated to be several billion years old.

Planetary System: HD 64440 is known to host at least one confirmed exoplanet, designated HD 64440 b. This planet is a gas giant with a mass significantly larger than Jupiter. It orbits the star at a relatively close distance, making it a hot Jupiter. The discovery of this planet was made using the radial velocity method, which detects the wobble in a star's motion caused by the gravitational pull of an orbiting planet.

Significance: HD 64440, and particularly its exoplanet, are objects of interest for astronomers studying planetary formation and evolution. The system provides valuable data for understanding the diversity of planetary systems beyond our own solar system and for testing models of planet formation around stars with different properties compared to the Sun.