Temperature
5573 K
5370 to 5697
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Stellar HostProfile
HD 38529
Unclassified star • 42.35 pc
Records
19
literature rows
Planets
2
system count
References
20
distinct source labels
HD: HD 38529HIP: HIP 27253TIC: TIC 200093173
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: Jofré et al. 2015 • System source: TICv8
Mass
1.41 Msun
0.98 to 1.60
Radius
2.66 Rsun
2.50 to 2.86
Age
3.09 Gyr
3.09 to 4.50
Luminosity
0.74 log(Lsun)
0.74 to 0.84
Distance
42.35 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 2.66 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 38529
2.66 R☉
System Layout
Known planets
2 planets linked to this host
HD 38529 b
Radial Velocity
◌
Discovery
2000
Period
14.31 days
Radius
—
Mass
206.6 M⊕
Eq. Temp
—
HD 38529 c
Radial Velocity
◌
Discovery
2000
Period
2127.6 days
Radius
—
Mass
3299.1 M⊕
Eq. Temp
—
HD 38529 and Its Two Known Planets
HD 38529 is a spectral type G4 IV star located 138 light-years away, with two planets known to orbit it. The star is estimated to be 3.09 billion years old and holds 1.41 solar masses, a radius of 2.66 solar radii, and a temperature of 5570 K. Its reported mass and radius estimates are larger than the Sun's, while its reported temperature is cooler.
Both planets were discovered in 2000 by the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion. HD 38529 b has a minimum mass of 207 Earth masses and an orbital period of 14.3 days, giving it the shortest year among the listed planets. HD 38529 c has a mass of 3300 Earth masses and an orbital period of 2130 days, the longest year among the listed planets. Its reported mass estimate is larger than Earth's and roughly 10.4 times Jupiter's mass.
Provenance
Underlying measurements and references
Evidence Summary
Rows
19
Stellar refs
19
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 |
|---|---|---|---|---|---|---|---|---|
| 5541 | 1.41 | 2.56 | — | — | — | 42.35 | Luhn et al. 2019 | TICv8 |
| 5697 | 1.48 | — | — | — | G4 IV | 42.35 | Wittenmyer et al. 2009 | TICv8 |
| 5674 | 1.60 | — | — | — | — | 42.35 | Santos et al. 2004 | TICv8 |
| 5370 | 1.39 | 2.82 | — | — | G4 IV | 42.35 | Fischer et al. 2001 | TICv8 |
| — | 1.34 | — | — | — | — | 42.35 | Bryan et al. 2016 | TICv8 |
| 5573 | 1.41 | 2.66 | 3.09 | 0.74 | — | 42.35 | Jofré et al. 2015 | TICv8 |
| — | 1.48 | 2.50 | 3.28 | — | — | 42.35 | Takeda et al. 2007 | TICv8 |
| — | — | — | — | — | — | 42.35 | Valenti & Fischer 2005 | TICv8 |
| 5586 | — | 2.81 | — | 0.84 | — | 42.35 | Gaia DR2 | TICv8 |
| — | 1.36 | 2.58 | 4.50 | — | G4 IV | 42.35 | Xuan et al. 2020 | TICv8 |
| 5541 | 0.98 | 2.84 | — | 0.83 | — | 42.35 | TICv8 | TICv8 |
| — | 0.98 | — | — | — | — | 42.35 | Feng et al. 2022 | TICv8 |
| 5567 | — | — | — | — | — | 42.35 | Maldonado et al. 2015 | TICv8 |
| 5674 | 1.34 | — | — | — | — | 42.35 | Mortier et al. 2013 | TICv8 |
| — | — | — | — | — | G8 III/IV | 42.35 | Michigan Catalog, Vol. 5 | TICv8 |
| — | — | — | — | — | — | 42.35 | Wright et al. 2004 | TICv8 |
| 5624.2 | 1.53 | 2.86 | — | — | — | 42.35 | Rosenthal et al. 2021 | TICv8 |
| — | — | — | — | — | — | 42.35 | Nidever et al. 2002 | TICv8 |
| — | — | — | — | — | G5 | 42.35 | Cannon & Pickering 1918 | TICv8 |