Temperature
3600 K
3451 to 3700
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Stellar HostProfile
GJ 674
M2.5 • 4.55 pc
Records
7
literature rows
Planets
1
system count
References
8
distinct source labels
TIC: TIC 218263393HIP: HIP 85523
Approximate color
from effective temperature
Canonical Summary
Adopted host values from one source row
Values come from the row with the most populated summary measurements. Missing values stay missing. Ranges and counts describe all source rows.
Stellar source: Bonfils et al. 2007 • System source: TICv8
Mass
0.35 Msun
0.35 to 0.35
Age
0.55 Gyr
0.55 to 2.84
Luminosity
-1.80 log(Lsun)
-1.80 to -1.70
Distance
4.55 pc
single adopted value
Spectral Type
M2.5
Multiple classifications reported
Planets
1
Stable across source rows
System Layout
Known planets
1 planets linked to this host
GJ 674 b
Radial Velocity
◌
Discovery
2007
Period
4.69 days
Radius
—
Mass
11.09 M⊕
Eq. Temp
—
GJ 674 and Its Orbiting Planet
GJ 674 is an M2.5 star located 14.8 light-years away. Its spectral class places it among the small, cool red dwarfs. The star's reported mass estimate is 0.35 solar masses, smaller than the Sun's, and its reported temperature is 3600 K, cooler than the Sun's. Its age is 0.55 billion years.
One planet is known to orbit this star. GJ 674 b was discovered in 2007 by the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion. Repeated wobbles reveal the planet and its orbital period. The planet completes one orbit in 4.69 days. Its minimum mass is 11.1 Earth masses, larger than Earth's, meaning this value is a lower bound on the planet's true mass rather than an ordinary estimate.
Provenance
Underlying measurements and references
Evidence Summary
Rows
7
Stellar refs
7
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositydisputed
Surface Gravitystable
Metallicitystable
Spectral Typedisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | M2.5 | 4.55 | Hawley et al. 1996 | TICv8 |
| — | — | — | — | — | M2+ V | 4.55 | Gray et al. 2006 | TICv8 |
| — | — | — | 2.84 | — | — | 4.55 | Sanz-Forcada et al. 2010 | TICv8 |
| 3600 | 0.35 | — | 0.55 | -1.80 | M2.5 | 4.55 | Bonfils et al. 2007 | TICv8 |
| 3461 | 0.35 | 0.36 | — | -1.70 | M2.5V | 4.55 | Turnbull 2015 | TICv8 |
| 3451 | 0.35 | 0.36 | — | -1.77 | — | 4.55 | TICv8 | TICv8 |
| 3700 | — | — | — | — | — | 4.55 | Gaia DR2 | TICv8 |