Temperature
3734 K
3590 to 3972.6
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Stellar HostProfile
GJ 649
M1.0 • 10.38 pc
Records
13
literature rows
Planets
1
system count
References
13
distinct source labels
TIC: TIC 236743275HIP: HIP 83043
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: Pinamonti et al. 2023 • System source: TICv8
Mass
0.51 Msun
0.46 to 0.54
Radius
0.50 Rsun
0.46 to 0.54
Luminosity
-1.36 log(Lsun)
-1.36 to -1.30
Distance
10.38 pc
single adopted value
Spectral Type
M1.0
Multiple classifications reported
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.50 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
GJ 649
0.50 R☉
System Layout
Known planets
1 planets linked to this host
GJ 649 b
Radial Velocity
◌
Discovery
2009
Period
600.1 days
Radius
—
Mass
82.00 M⊕
Eq. Temp
—
GJ 649 and Its Planet
GJ 649 is an M-type dwarf star located 33.9 light-years from Earth. Its spectral type, M1.0, places it among the cooler, redder stars. The star has a reported mass of 0.51 solar masses, a radius of 0.5 solar radii, and a temperature of 3730 K. Each of these values is smaller or cooler than the corresponding solar figure.
One planet is known to orbit this star. GJ 649 b was discovered in 2009 using the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion. The planet's minimum mass is 82 Earth masses, a lower bound on its true mass, and its orbital period is 600 days. Its minimum mass is larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
13
Stellar refs
12
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typedisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | — | 10.38 | Duncan et al. 1991 | TICv8 |
| 3734 | 0.51 | 0.50 | — | -1.36 | M1.0 | 10.38 | Pinamonti et al. 2023 | TICv8 |
| — | — | — | — | — | — | 10.38 | Wright et al. 2004 | TICv8 |
| 3590 | 0.54 | 0.54 | — | -1.36 | M0.5 | 10.38 | von Braun et al. 2014 | TICv8 |
| 3675 | 0.46 | 0.53 | — | -1.30 | M2 | 10.38 | Turnbull 2015 | TICv8 |
| — | — | — | — | — | — | 10.38 | Duncan et al. 1991 | TICv8 |
| 3674 | 0.51 | 0.52 | — | -1.36 | — | 10.38 | TICv8 | TICv8 |
| — | — | 0.46 | 0.44 | — | — | 10.38 | Takeda et al. 2007 | TICv8 |
| — | — | — | — | — | — | 10.38 | Nidever et al. 2002 | TICv8 |
| 3972.6 | — | — | — | — | — | 10.38 | Gaia DR2 | TICv8 |
| 3807.2 | 0.53 | 0.50 | — | — | — | 10.38 | Rosenthal et al. 2021 | TICv8 |
| — | — | — | — | — | M1 | 10.38 | Hawley et al. 1996 | TICv8 |
| 3700 | 0.54 | — | — | — | M1.5 | 10.38 | Johnson et al. 2010 | TICv8 |