Gliese 682 c

Summary

Gliese 682 c
Discovery
Discovered byMikko Tuomi
Discovery siteUniversity of Hertfordshire
Discovery dateMarch 4, 2014
Orbital characteristics
0.176 AU
57.3 days d
StarGliese 682
Physical characteristics
Mean radius
≥1.9[1] R🜨
Mass≥8.7[1]MEarth

Gliese 682 c is an exoplanet candidate believed to orbit the red dwarf Gliese 682. It is a super-Earth.

The planet has a mass of 4.4 ME and a radius of ~1.5 RE if rocky. Gliese 682 c was one of four planets discovered by researchers at the University of Hertfordshire and was discovered on March 4, 2014. The planet, at discovery, was the second-closest known planet in the so-called Goldilocks zone, at 17 light years.[2]

It orbits Gliese 682 at 0.176AU, in a nearly circular orbit each 57.3 days.[3]

A study in 2020 did not confirm the existence of Gliese 682 c, attributing radial velocity signal to the stellar activity instead.[4]

References

  1. ^ a b PHL's Exoplanets Catalog – Planetary Habitability Laboratory @ UPR Arecibo
  2. ^ Stars with Multiple Habitable Planets Might be Common (University of Porto Rico, 2014).
  3. ^ Mikko Tuomi, Hugh R. A. Jones, John R. Barnes, Guillem Anglada-Escudé, James S. Jenkins, Bayesian search for low-mass planets around nearby M dwarfs. Estimates for occurrence rate based on global detectability statistics (Submitted on 3 Mar 2014).
  4. ^ Feng, Fabo; Butler, R. Paul; Shectman, Stephen A.; Crane, Jeffrey D.; Vogt, Steve; Chambers, John; Jones, Hugh R. A.; Wang, Sharon Xuesong; Teske, Johanna K.; Burt, Jenn; Díaz, Matías R.; Thompson, Ian B. (8 January 2020). "Search for Nearby Earth Analogs. II. Detection of Five New Planets, Eight Planet Candidates, and Confirmation of Three Planets around Nine Nearby M Dwarfs". The Astrophysical Journal Supplement Series. 246 (1): 11. arXiv:2001.02577. Bibcode:2020ApJS..246...11F. doi:10.3847/1538-4365/ab5e7c. S2CID 210064560.