Gliese 674 b

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Gliese 674 b
Discovery
Discovered byBonfils et al.
Discovery siteESO
Discovery dateJanuary 7, 2007
HARPS
Orbital characteristics
0.039 AU (5,800,000 km)
Eccentricity0.2 ± 0.02
4.6938 ± 0.007 d
2453780.085 ± 0.078
6 ± 200
Semi-amplitude8.70 ± 0.19
StarGliese 674

Gliese 674 b is an extrasolar planet approximately 15 light years away in the constellation of Ara. This planet orbits tightly around Gliese 674. It is a sub-Neptune-or-Uranus-mass planet either gaseous or rocky. It orbits as close as 0.039 AU from the star and takes only 4.6938 days to orbit. This planet has a similar eccentricity to Mercury (e=0.2). The discovery of the planet was announced on January 7, 2007 by using the HARPS spectrograph mounted on the ESO’s 3.6 meter telescope at La Silla, Chile.[1]

References[edit]

  1. ^ Bonfils, 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.

External links[edit]

Coordinates: Sky map 17h 28m 39.9463s, −46° 53′ 42.685″