Temperature
5442 K
5429 to 5527
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Stellar HostProfile
HD 83443
K0 V • 40.90 pc
Records
17
literature rows
Planets
2
system count
References
17
distinct source labels
HIP: HIP 47202HD: HD 83443TIC: TIC 32820141
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: Errico et al. 2022 • System source: TICv8
Mass
1 Msun
0.79 to 1.05
Radius
0.94 Rsun
0.93 to 1.02
Age
2.64 Gyr
1 to 11.68
Luminosity
-0.10 log(Lsun)
-0.14 to -0.06
Distance
40.90 pc
single adopted value
Spectral Type
K0 V
Multiple classifications reported
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.94 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 83443
0.94 R☉
System Layout
Known planets
2 planets linked to this host
HD 83443 b
Radial Velocity
◌
Discovery
2002
Period
2.99 days
Radius
—
Mass
127.8 M⊕
Eq. Temp
—
HD 83443 c
Radial Velocity
◌
Discovery
2022
Period
8241 days
Radius
—
Mass
476.7 M⊕
Eq. Temp
—
HD 83443 and Its Two Known Planets
HD 83443 is a K0 V star located 133 light-years away. Its spectral type marks it as a K-type main-sequence dwarf, a class cooler than the Sun. The star is estimated to be 2.64 billion years old, with a mass of 1 solar masses and a radius of 0.94 solar radii, making it slightly smaller than the Sun. Its temperature is 5440 K, cooler than the Sun's. Two planets are known to orbit this host.
HD 83443 b was discovered in 2002 by the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion. It has a minimum mass of 128 Earth masses and an orbital period of 2.99 days, the shortest year among the listed planets.
HD 83443 c was also found by radial velocity, in 2022. Its mass is 477 Earth masses, roughly 1.5 times Jupiter's mass, and its orbital period is 8240 days - the longest year among the listed planets. Both planets are more massive than Earth.
Provenance
Underlying measurements and references
Evidence Summary
Rows
17
Stellar refs
16
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 |
|---|---|---|---|---|---|---|---|---|
| 5527 | 1.05 | 0.93 | 1 | -0.14 | — | 40.90 | Ghezzi et al. 2010 | TICv8 |
| 5454 | 0.93 | — | — | — | — | 40.90 | Santos et al. 2004 | TICv8 |
| — | 0.79 | — | — | — | — | 40.90 | Butler et al. 2002 | TICv8 |
| 5429.2 | 1.01 | 1.02 | — | — | — | 40.90 | Rosenthal et al. 2021 | TICv8 |
| — | — | — | — | — | — | 40.90 | Nidever et al. 2002 | TICv8 |
| 5487 | — | 0.98 | — | -0.10 | — | 40.90 | Gaia DR2 | TICv8 |
| — | — | — | — | — | — | 40.90 | Wright et al. 2004 | TICv8 |
| 5454 | 0.90 | — | 3.20 | -0.06 | — | 40.90 | Mayor et al. 2004 | TICv8 |
| 5511 | 0.95 | — | — | -0.07 | — | 40.90 | Sousa et al. 2008 | TICv8 |
| — | 0.99 | 1.02 | 11.68 | — | — | 40.90 | Takeda et al. 2007 | TICv8 |
| 5442 | 0.79 | 0.94 | — | — | — | 40.90 | Stassun et al. 2017 | TICv8 |
| 5442 | 1 | 0.94 | 2.64 | -0.10 | K0 V | 40.90 | Errico et al. 2022 | TICv8 |
| — | — | — | — | — | K0/1 V + G (III) | 40.90 | Michigan Catalog, Vol. 2 | TICv8 |
| — | — | — | — | — | K0/1 V + G (III) | 40.90 | Michigan Catalog, Vol. 2 | TICv8 |
| 5429 | 0.95 | 1.00 | — | -0.10 | — | 40.90 | TICv8 | TICv8 |
| — | — | — | — | — | K0 | 40.90 | Cannon & Pickering 1918 | TICv8 |
| — | — | — | — | — | — | 40.90 | Valenti & Fischer 2005 | TICv8 |