Temperature
4802 K
4802 to 4854.0
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Stellar HostProfile
HD 4917
Unclassified star • 204.3 pc
Records
5
literature rows
Planets
1
system count
References
6
distinct source labels
HIP: HIP 3975TIC: TIC 77481104HD: HD 4917
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: Luhn et al. 2019 • System source: TICv8
Mass
1.32 Msun
single adopted value
Radius
5.01 Rsun
5.01 to 7.91
Distance
204.3 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 5.01 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 4917
5.01 R☉
System Layout
Known planets
1 planets linked to this host
HD 4917 b
Radial Velocity
◌
Discovery
2018
Period
400.5 days
Radius
—
Mass
513.3 M⊕
Eq. Temp
—
HD 4917 and Its Planet
HD 4917 is a K0 star 666 light-years away. One planet orbits this host. The star's reported mass estimate is 1.32 solar masses, larger than the Sun's, and its reported radius estimate is 5.01 solar radii, also larger than the Sun's. Its temperature is 4800 K, cooler than the Sun's.
The planet is HD 4917 b, discovered in 2018 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. HD 4917 b has a minimum mass of 513 Earth masses, larger than Earth's and roughly 1.62 times Jupiter's mass. Its orbital period is 401 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
5
Stellar refs
5
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massstable
Radiusdisputed
Luminositystable
Surface Gravitystable
Metallicitystable
Spectral Typedisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 4802 | — | 7.91 | — | — | — | 204.3 | TICv8 | TICv8 |
| 4854.0 | — | 7.56 | — | 1.46 | — | 204.3 | Gaia DR2 | TICv8 |
| 4802 | 1.32 | 5.01 | — | — | — | 204.3 | Luhn et al. 2019 | TICv8 |
| — | — | — | — | — | K0 III/IV | 204.3 | Michigan Catalog, Vol. 4 | TICv8 |
| — | — | — | — | — | K0 | 204.3 | Cannon & Pickering 1918 | TICv8 |