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]
| 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±0.00003 d | |
| 2453160.26±0.04 | |
| 138.1°±2.9° | |
| Semi-amplitude | 8.68+0.11 −0.12 m/s |
| Star | Gliese 674 |
| Physical characteristics | |
| Mass | ≥10.95±0.14 M🜨[2] |
References
edit- ^ a b 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. S2CID 119671420. Archived from the original on 2014-12-28. Retrieved 2019-01-21.
- ^ a b Liebing, 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 from the original on 2009-11-25. Retrieved 2008-08-02.
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