Gliese 674 b
Appearance
Discovery[1] | |
---|---|
Discovered by | Bonfils et al. |
Discovery site | ESO |
Discovery date | January 7, 2007 |
HARPS | |
Orbital characteristics[2] | |
0.03867087(15)AU | |
Eccentricity | 0.242+0.012 −0.013 |
4.69502±0.00003d | |
2453160.26±0.04 | |
138.1°±2.9° | |
Semi-amplitude | 8.68+0.11 −0.12m/s |
Star | Gliese 674 |
Physical characteristics | |
Mass | ≥10.95±0.14M🜨[2] |
Gliese 674 bis anextrasolar planetapproximately 15light yearsaway in theconstellationofAra.This planet orbits tightly aroundGliese 674.It is a sub-Neptune-or-Uranus-mass planet eithergaseousorrocky.It orbits as close as 0.039AUfrom the star and takes only 4.6938daysto orbit. This planet has a similareccentricitytoMercury(e=0.2). The discovery of the planet was announced on January 7, 2007 by using theHARPSspectrographmounted on theESO's 3.6 metertelescopeatLa Silla,Chile.[1]
References
[edit]- ^abBonfils, X.; et al. (2007)."The HARPS search for southern extra-solar planets. X. A m sin i = 11 M_⊕ planet around the nearby spotted M dwarf GJ 674".Astronomy and Astrophysics.474(1): 293–299.arXiv:0704.0270.Bibcode:2007A&A...474..293B.doi:10.1051/0004-6361:20077068.S2CID119671420.Archivedfrom the original on 2014-12-28.Retrieved2019-01-21.
- ^abLiebing, F.; Jeffers, S. V.; et al. (September 2024). "RedDots: Limits on habitable and undetected planets orbiting nearby stars GJ 832, GJ 674, and Ross 128".Astronomy & Astrophysics.arXiv:2409.01173.
External links
[edit]- "GJ 674".Exoplanets.Archived fromthe originalon 2009-11-25.Retrieved2008-08-02.