HD 34445 g is a gas giant exoplanet in the habitable zone of a G-type star. HD 34445 g has a mass of 120.840 times that of Earth. It has a mass of 0.38 Jupiters, takes 15.6 years to complete one orbit around its star, and is 6.36 AU away from it. The radius is 13.600 times that of the Earth. It was discovered in 2017 and was announced.
The Multiple Observatories observatory discovered HD 34445 g in 2017-11 using the radial velocity method. Its semi-major axis is 6.36 astronomical units, whereas Earth’s is 1 astronomical unit.
HD 34445 g is an exoplanet that orbits the star HD 34445, which is located approximately 151.7 light-years (46.5 pc) from our Solar System. Its discovery was made public in 2017. HD 34445 has an apparent magnitude of 7.3 and an absolute magnitude of 4.0. It is 1.1 times more massive and 1.4 times larger than our Sun. The surface temperature is 5836 degrees Celsius, and the spectral type is G0V. The extrasolar planet HD 34445 g orbits the star HD 34445 every 5700.0 days at an orbital distance of 6.36 AU in this planetary system.
HD 34445 is a star in the equatorial constellation of Orion with multiple exoplanetary companions. It is a 7th magnitude star with an apparent visual magnitude of 7.31 that is too dim to be seen with the naked eye. Based on parallax measurements, the system is 150.5 light-years from the Sun, but it is moving closer with a high radial velocity of 79 km/s. HD 34445 g, with a mass of more than 50 Earth masses, is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, similar to Jupiter and Saturn in our solar system.
The radius of HD 34445 has been calculated to be 1.47 times that of the Sun. The radius of the Sun is 695,800km, so the radius of the star is estimated to be 1,022,529.20km. The solar mass of HD 34445 is 1.07 times that of our star, the Sun. The metallicity of the star is 0.140000, which is the fraction of the star that is not Hydrogen (X) or Helium (Y). According to Hipparcos data files, the star is approximately 8.60 billion years old, but it could be between 7.60 and 9.60 billion years old. In comparison, the Sun is approximately 4.6 billion years old.
