description 55 Cancri d Overview
55 Cancri d is a gas-giant exoplanet in the 55 Cancri system, orbiting a Sun-like star about 41 light-years from Earth. It has a minimum mass of roughly four Jupiters, travels at a distance near 5.7 astronomical units, and takes about 14.7 years to complete an orbit. Its long-period orbit distinguishes it from the system’s closer planets and was established through long-term radial-velocity observations.
help 55 Cancri d FAQ
What type of planet is 55 Cancri d?
55 Cancri d is a gas giant with a minimum mass of roughly four Jupiters. It orbits the Sun-like star 55 Cancri at a distance near 5.7 astronomical units.
How long is a year on 55 Cancri d?
The planet takes about 14.7 years to complete one orbit. Its long period reflects its position in the outer part of the 55 Cancri system.
How far away is 55 Cancri d?
The 55 Cancri system is about 41 light-years from Earth. The host star is a Sun-like star, making the system a useful comparison point for studying multi-planet systems around stars similar to our Sun.
Is 55 Cancri d the only planet around 55 Cancri?
No, 55 Cancri is a multi-planet system with several known planets. Planet d is the outer gas giant described here, while other planets occupy much tighter orbits closer to the star.
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