description GJ 357 c Overview
GJ 357 c is a confirmed exoplanet orbiting the nearby M-dwarf star GJ 357. It is classified as a super-Earth and is non-transiting, so its presence was inferred from the star's radial-velocity variations rather than a visible passage across the stellar disk. Announced in 2019 with GJ 357 b and GJ 357 d, it has a minimum mass of about 3.4 Earth masses.
help GJ 357 c FAQ
What is GJ 357 c?
GJ 357 c is a confirmed super-Earth orbiting the nearby M-dwarf star GJ 357. It is non-transiting, so astronomers inferred it from changes in the star's radial velocity.
How was GJ 357 c discovered?
Astronomers detected GJ 357 c through radial-velocity measurements. This method tracks the Doppler shifts caused by a planet's gravitational pull on its star.
Does GJ 357 c pass in front of its star?
No. GJ 357 c is classified as non-transiting, meaning it does not visibly cross the disk of GJ 357 from our observing viewpoint.
When was GJ 357 c announced?
The discovery of GJ 357 c was announced in 2019. It became part of the known planetary system around the nearby red dwarf GJ 357.
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.
