Temperature
4861 K
4801 to 4891
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Stellar HostProfile
HD 100655
G9 III • 137.2 pc
Records
7
literature rows
Planets
1
system count
References
8
distinct source labels
HD: HD 100655HIP: HIP 56508TIC: TIC 156942082
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: Omiya et al. 2012 • System source: TICv8
Mass
2.40 Msun
1.71 to 2.40
Radius
9.30 Rsun
8.89 to 10.34
Luminosity
1.63 log(Lsun)
1.63 to 1.73
Distance
137.2 pc
single adopted value
Spectral Type
G9 III
Multiple classifications reported
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 9.30 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 100655
9.30 R☉
System Layout
Known planets
1 planets linked to this host
HD 100655 b
Radial Velocity
◌
Discovery
2011
Period
157.6 days
Radius
—
Mass
511.7 M⊕
Eq. Temp
—
HD 100655 and Its Planet
HD 100655 is a star 447 light-years away with the spectral type G9 III. Its mass is 2.4 solar masses, its radius is 9.3 solar radii, and its temperature is 4860 K, cooler than the Sun's. One planet orbits this host.
That planet, HD 100655 b, was discovered in 2011 by the radial velocity method, which detects the wobble a planet's gravity induces in its star. Its minimum mass is 512 Earth masses, a lower bound on its true mass and roughly 1.61 times Jupiter's mass. Its orbital period is 158 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
7
Stellar refs
7
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 |
|---|---|---|---|---|---|---|---|---|
| 4891 | 2.03 | 8.89 | 1.31 | — | — | 137.2 | Sousa et al. 2015 | TICv8 |
| — | — | — | — | — | K0 | 137.2 | Cannon & Pickering 1918 | TICv8 |
| 4861 | 2.40 | 9.30 | — | 1.63 | G9 III | 137.2 | Omiya et al. 2012 | TICv8 |
| 4891 | 2.28 | 10.06 | — | — | — | 137.2 | Stassun et al. 2017 | TICv8 |
| 4891 | — | 10.34 | — | — | — | 137.2 | TICv8 | TICv8 |
| 4891 | — | 10.26 | — | 1.73 | — | 137.2 | Gaia DR2 | TICv8 |
| 4801 | 1.71 | — | — | — | — | 137.2 | Mortier et al. 2013 | TICv8 |