Temperature
5151 K
5151 to 5263.5
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Stellar HostProfile
GJ 86
K1V • 10.78 pc
Records
18
literature rows
Planets
1
system count
References
19
distinct source labels
HIP: HIP 10138TIC: TIC 220017951HD: HD 13445
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: Turnbull 2015 • System source: TICv8
Mass
0.80 Msun
0.70 to 0.93
Radius
0.80 Rsun
0.77 to 0.80
Age
11.30 Gyr
3.56 to 11.30
Luminosity
-0.38 log(Lsun)
-0.39 to -0.38
Distance
10.78 pc
single adopted value
Spectral Type
K1V
Multiple classifications reported
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.80 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
GJ 86
0.80 R☉
System Layout
Known planets
1 planets linked to this host
GJ 86 b
Radial Velocity
◌
Discovery
1999
Period
15.76 days
Radius
—
Mass
1404.8 M⊕
Eq. Temp
—
GJ 86 and Its Planet
GJ 86 is a K1V star located 35.2 light-years away. This spectral type indicates a K-type main-sequence dwarf, a class cooler and redder than the Sun. The star's reported mass is 0.8 solar masses, smaller than the Sun's, and its radius is 0.8 solar radii, likewise smaller. Its temperature of 5150 K is cooler than the Sun's, and its age is 11.3 billion years. One planet is known to orbit this host.
That planet, GJ 86 b, was discovered in 1999 using the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion. Its minimum mass is 1400 Earth masses, a lower bound on its true mass that is larger than Earth's and roughly 4.42 times Jupiter's mass. The planet completes one orbit in 15.8 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
18
Stellar refs
18
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typedisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | — | 10.78 | Henry et al. 1996 | TICv8 |
| — | — | — | — | — | — | 10.78 | Nordstrom et al. 2004 | TICv8 |
| 5214 | — | — | — | — | — | 10.78 | Maldonado et al. 2015 | TICv8 |
| 5188.5 | 0.88 | 0.79 | — | -0.39 | — | 10.78 | TICv8 | TICv8 |
| 5182 | 0.93 | 0.77 | — | — | — | 10.78 | Stassun et al. 2017 | TICv8 |
| — | 0.80 | — | — | — | — | 10.78 | Butler et al. 2001 | TICv8 |
| — | — | — | 3.56 | — | — | 10.78 | Sanz-Forcada et al. 2010 | TICv8 |
| 5151 | 0.80 | 0.80 | 11.30 | -0.38 | K1V | 10.78 | Turnbull 2015 | TICv8 |
| — | — | — | — | — | K1 V | 10.78 | Michigan Catalog, Vol. 2 | TICv8 |
| — | 0.80 | 0.80 | 8.48 | — | — | 10.78 | Takeda et al. 2007 | TICv8 |
| — | — | — | — | — | — | 10.78 | Pizzolato et al. 2003 | TICv8 |
| 5151 | 0.77 | — | — | — | — | 10.78 | Butler et al. 2006 | TICv8 |
| — | — | — | — | — | — | 10.78 | Valenti & Fischer 2005 | TICv8 |
| — | — | — | — | — | G5 | 10.78 | Cannon & Pickering 1918 | TICv8 |
| 5163 | 0.70 | — | — | — | — | 10.78 | Santos et al. 2004 | TICv8 |
| 5263.5 | — | 0.77 | — | -0.39 | — | 10.78 | Gaia DR2 | TICv8 |
| — | — | — | — | — | — | 10.78 | Reiners & Schmitt 2003a | TICv8 |
| — | — | — | — | — | K1 V | 10.78 | Gray et al. 2006 | TICv8 |