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Gliese 674 b

Coordinates:Sky map17h28m39.9463s,−46° 53′ 42.685″
From Wikipedia, the free encyclopedia
Gliese 674 b
Discovery[1]
Discovered byBonfils et al.
Discovery siteESO
Discovery dateJanuary 7, 2007
HARPS
Orbital characteristics[2]
0.03867087(15)AU
Eccentricity0.242+0.012
−0.013
4.69502±0.00003d
2453160.26±0.04
138.1°±2.9°
Semi-amplitude8.68+0.11
−0.12
m/s
StarGliese 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

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  1. ^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.
  2. ^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.
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