Kepler-56d

Kepler-56d is an unconfirmed exoplanet. It may be a companion star orbiting Kepler-56. If it exists, it's orbital period would be 899 days. It's equilibrium temperature would be 307 K. It would have an eccentricity of 0.4. It would have a mass 3.3 times that of Jupiter. It would also have a semi-major axis of 2.16 AU. It is 3.5 billion years old, significantly younger than our solar system's age of 4.5 billion years. Kepler-56 is an orange subgiant because it is 32% more massive than the Sun.