description HD 154345 b Overview
HD 154345 b is a long-period giant exoplanet orbiting the nearby G-type star HD 154345. Its orbit lies at approximately 1 astronomical unit from the star, and its mass and orbital distance have led astronomers to describe it as a Jupiter analog. The planet was reported in 2007 using precise measurements of the star's motion caused by the orbiting companion.
help HD 154345 b FAQ
Why is HD 154345 b called a Jupiter analog?
HD 154345 b has a long orbit at approximately 1 astronomical unit from its G-type host star. Its mass and orbital distance resemble Jupiter's broad role in the Solar System, although the systems are not identical.
When was HD 154345 b reported?
HD 154345 b was reported in 2007 after radial-velocity observations of the nearby star HD 154345. The long orbital period required careful monitoring over time.
How far is HD 154345 b from its star?
Its orbit lies at approximately 1 astronomical unit, the average Earth-Sun distance. That distance is much farther from the star than the orbit of a typical hot Jupiter.
Is HD 154345 b a rocky planet?
No. It is described as a giant exoplanet with a mass closer to the giant-planet regime. A Jupiter-like orbital distance does not imply an Earth-like solid surface.
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