Temperature
5817 K
5788 to 5841
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Stellar HostProfile
HD 16417
G1V • 25.39 pc
Records
12
literature rows
Planets
1
system count
References
13
distinct source labels
TIC: TIC 122555698HD: HD 16417HIP: HIP 12186
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
1.12 Msun
1.05 to 1.21
Radius
1.63 Rsun
1.58 to 1.64
Age
7.32 Gyr
7 to 7.32
Luminosity
0.47 log(Lsun)
0.40 to 0.47
Distance
25.39 pc
single adopted value
Spectral Type
G1V
Multiple classifications reported
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.63 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 16417
1.63 R☉
System Layout
Known planets
1 planets linked to this host
HD 16417 b
Radial Velocity
◌
Discovery
2008
Period
17.24 days
Radius
—
Mass
22.10 M⊕
Eq. Temp
—
HD 16417 and Its Lone Known Planet
HD 16417 is a G1V star 82.8 light-years away, a spectral type indicating a Sun-like main-sequence dwarf. Its reported temperature is 5820 K, hotter than the Sun's, while its radius of 1.63 solar radii and mass of 1.12 solar masses are both larger than the Sun's. The star is also old, with an age of 7.32 billion years. It is accompanied by a stellar companion, but only one planet is known to orbit HD 16417 itself.
That planet, HD 16417 b, was discovered in 2008 by the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion; repeated wobbles reveal the planet and its orbital period. HD 16417 b completes an orbit every 17.2 days. Its minimum mass is 22.1 Earth masses, a lower bound on its true mass that is larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
12
Stellar refs
12
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 |
|---|---|---|---|---|---|---|---|---|
| — | 1.20 | — | — | — | G1 V | 25.39 | O'Toole et al. 2009 | TICv8 |
| — | — | — | — | — | G1 V | 25.39 | Gray et al. 2006 | TICv8 |
| 5841 | 1.21 | — | — | 0.42 | — | 25.39 | Sousa et al. 2008 | TICv8 |
| — | — | — | — | — | — | 25.39 | Nordstrom et al. 2004 | TICv8 |
| — | — | — | — | — | G1 V | 25.39 | Michigan Catalog, Vol. 3 | TICv8 |
| — | — | — | — | — | — | 25.39 | Reiners & Schmitt 2003a | TICv8 |
| 5788 | 1.15 | 1.58 | 7 | 0.40 | — | 25.39 | Ghezzi et al. 2010 | TICv8 |
| 5817 | — | 1.64 | — | 0.44 | — | 25.39 | Gaia DR2 | TICv8 |
| 5831.1 | 1.05 | 1.62 | — | 0.43 | — | 25.39 | TICv8 | TICv8 |
| 5817 | 1.12 | 1.63 | 7.32 | 0.47 | G1V | 25.39 | Turnbull 2015 | TICv8 |
| — | — | — | — | — | — | 25.39 | Valenti & Fischer 2005 | TICv8 |
| — | — | — | — | — | G5 | 25.39 | Cannon & Pickering 1918 | TICv8 |