description HD 168443 c Overview
HD 168443 c is a very massive companion to the star HD 168443, detected through radial-velocity measurements. It was announced in 2001 and follows an orbit lasting about 4.8 years. Its estimated minimum mass is roughly 17 times the mass of Jupiter, placing it near the boundary between planetary-mass objects and brown dwarfs. Because radial-velocity measurements provide a minimum mass rather than the true mass, the object's classification depends partly on the system's orbital inclination.
help HD 168443 c FAQ
What makes HD 168443 c unusual?
HD 168443 c is an extremely massive companion with an estimated minimum mass of roughly 17 times Jupiter's mass. That places it near the boundary between very massive planets and brown dwarfs.
How long is HD 168443 c's orbit?
HD 168443 c takes about 4.8 years to complete one orbit around its star. Its long period reflects a much wider orbit than a typical hot Jupiter.
How was HD 168443 c detected?
Astronomers detected it through radial-velocity measurements of HD 168443. The technique tracks periodic changes in the star's motion caused by the companion.
When was HD 168443 c announced?
The companion was announced in 2001. Its very high minimum mass made the system important for discussions of the planet and brown-dwarf boundary.
explore Explore More
Reviews & Comments
Write a Review
Be the first to review
Share your thoughts with the community and help others make better decisions.
