Temperature
4877 K
4679.4 to 4877
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Stellar HostProfile
HD 104985
G9 III • 100.6 pc
Records
7
literature rows
Planets
1
system count
References
8
distinct source labels
HIP: HIP 58952HD: HD 104985TIC: TIC 160224839
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: Sato et al. 2008 • System source: TICv8
Mass
2.30 Msun
1.04 to 2.30
Radius
11 Rsun
11 to 11.63
Luminosity
1.78 log(Lsun)
1.76 to 1.78
Distance
100.6 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: 11 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 104985
11 R☉
System Layout
Known planets
1 planets linked to this host
HD 104985 b
Radial Velocity
◌
Discovery
2003
Period
199.7 days
Radius
—
Mass
1766.8 M⊕
Eq. Temp
—
HD 104985 and Its Planet
HD 104985 is a G9 III star 328 light-years away. Its mass is 2.3 solar masses, its radius is 11 solar radii, and its temperature is 4880 K. Both the mass and radius are larger than the Sun's, while the temperature is cooler. One planet orbits this star.
HD 104985 b was discovered in 2003 by the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion. Its orbital period is 200 days, and its minimum mass is 1770 Earth masses - a lower bound on its true mass. That minimum mass is larger than Earth's and roughly 5.56 times Jupiter's mass.
Provenance
Underlying measurements and references
Evidence Summary
Rows
7
Stellar refs
7
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typedisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | K0 | 100.6 | Cannon & Pickering 1918 | TICv8 |
| 4758 | — | 11.15 | — | 1.76 | — | 100.6 | Gaia DR2 | TICv8 |
| 4738 | 1.22 | 11.12 | — | 1.77 | G9 III | 100.6 | Teng et al. 2023 | TICv8 |
| 4819 | 1.04 | — | — | — | — | 100.6 | Mortier et al. 2013 | TICv8 |
| 4679.4 | — | 11.63 | — | — | — | 100.6 | TICv8 | TICv8 |
| — | — | — | — | — | — | 100.6 | Wright et al. 2004 | TICv8 |
| 4877 | 2.30 | 11 | — | 1.78 | G9 III | 100.6 | Sato et al. 2008 | TICv8 |