description HD 27442 b Overview
HD 27442 b is a giant exoplanet orbiting Epsilon Reticuli, the subgiant star also designated HD 27442. It has a mass comparable to Jupiter and completes an orbit in roughly 428 days. The planet was discovered through radial-velocity observations reported in 2000, and its orbit places it in the broader region where liquid water could be possible under suitable atmospheric conditions.
help HD 27442 b FAQ
How long is a year on HD 27442 b?
HD 27442 b completes an orbit in roughly 428 Earth days. Its host star, Epsilon Reticuli, is a subgiant also designated HD 27442.
What is the mass of HD 27442 b?
HD 27442 b has a mass comparable to Jupiter. Because it was found with radial velocity, the commonly reported value is a minimum mass unless the orbital inclination is independently known.
How was HD 27442 b discovered?
The planet was discovered through radial-velocity observations reported in 2000. Astronomers measured the motion of Epsilon Reticuli caused by the orbiting giant planet.
Is HD 27442 b a hot Jupiter?
No. Its roughly 428-day orbit places it much farther from its star than the classic few-day hot-Jupiter population, so it is better described as a Jupiter-like giant planet on a longer orbit.
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