Temperature
4891 K
4702 to 4891
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Stellar HostProfile
HD 162020
Unclassified star • 30.82 pc
Records
14
literature rows
Planets
1
system count
References
15
distinct source labels
HIP: HIP 87330TIC: TIC 367987991HD: HD 162020
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: Ghezzi et al. 2010 • System source: TICv8
Mass
0.75 Msun
0.42 to 0.77
Radius
0.63 Rsun
0.63 to 0.76
Age
1 Gyr
1 to 6
Luminosity
-0.69 log(Lsun)
-0.69 to -0.59
Distance
30.82 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.63 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 162020
0.63 R☉
System Layout
Known planets
1 planets linked to this host
HD 162020 b
Radial Velocity
◌
Discovery
2002
Period
8.43 days
Radius
—
Mass
3127.4 M⊕
Eq. Temp
—
HD 162020 and Its Lone Known Planet
HD 162020 is a G5 star 101 light-years away with one known planet. Its reported mass is 0.75 solar masses and its radius is 0.63 solar radii, both smaller than the Sun's. The star's reported temperature is 4890 K, cooler than the Sun's, and its age carries a reported upper limit of 1 billion years.
The one known planet is HD 162020 b, found in 2002 by the radial velocity method, which detects the wobble a planet's gravity induces in its star. Its minimum mass is 3130 Earth masses, a lower bound larger than Earth's and roughly 9.84 times Jupiter's mass. It completes an orbit every 8.43 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
14
Stellar refs
14
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 |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | — | 30.82 | Valenti & Fischer 2005 | TICv8 |
| 4702 | 0.70 | 0.76 | — | -0.60 | K2V: | 30.82 | Turnbull 2015 | TICv8 |
| 4861 | 0.69 | — | — | -0.61 | — | 30.82 | Sousa et al. 2008 | TICv8 |
| 4776.4 | 0.77 | 0.74 | — | -0.59 | — | 30.82 | TICv8 | TICv8 |
| — | — | — | — | — | K3- V k | 30.82 | Gray et al. 2006 | TICv8 |
| — | — | — | — | — | — | 30.82 | Nordstrom et al. 2004 | TICv8 |
| 4723 | 0.42 | 0.75 | — | — | — | 30.82 | Stassun et al. 2017 | TICv8 |
| 4830 | 0.75 | — | 6 | -0.60 | K3 V | 30.82 | Udry et al. 2002 | TICv8 |
| 4801.1 | — | 0.73 | — | -0.59 | — | 30.82 | Gaia DR2 | TICv8 |
| — | — | — | — | — | K2 (V) | 30.82 | Michigan Catalog, Vol. 2 | TICv8 |
| 4858 | 0.73 | — | — | — | — | 30.82 | Santos et al. 2004 | TICv8 |
| — | — | — | — | — | G5 | 30.82 | Cannon & Pickering 1918 | TICv8 |
| 4891 | 0.75 | 0.63 | 1 | -0.69 | — | 30.82 | Ghezzi et al. 2010 | TICv8 |
| 4798 | — | — | — | — | — | 30.82 | Tsantaki et al. 2014 | TICv8 |