Gliese 674 b
| Exoplanet | List of exoplanets | |
|---|---|---|
| [[Image:|300px]] | ||
| Parent star | ||
| Star | Gliese 674 | |
| Constellation | Ara | |
| Right ascension | (α) | 17h 28m 39.9463s |
| Declination | (δ) | –46° 53′ 42.685″ |
| Apparent magnitude | (mV) | 9.38 |
| Distance | 14.8 ± 0.1 ly (4.54 ± 0.03 pc) | |
| Spectral type | M3V | |
| Orbital elements | ||
| Semi-major axis | (a) | 0.039 AU |
| Periastron | (q) | 0.031 AU |
| Apastron | (Q) | 0.047 AU |
| Eccentricity | (e) | 0.2 ± 0.02 |
| Orbital period | (P) | 4.6938 ± 0.007 d (0.012851 y) |
| Argument of periastron |
(ω) | 6 ± 200° |
| Time of periastron | (T0) | 2453780.085 ± 0.078 JD |
| Semi-amplitude | (K) | 8.70 ± 0.19 m/s |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 0.037 MJ (11.8 M⊕) |
| Discovery information | ||
| Discovery date | January 7, 2007 | |
| Discoverer(s) | Bonfils et al. | |
| Discovery method | HARPS | |
| Discovery site | ESO | |
| Discovery status | Published | |
| Database references | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
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.
External links
- "GJ 674". Exoplanets.
Coordinates: 
17h 28m 39.9463s, −46° 53′ 42.685″
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