Temperature
5706 K
5546 to 5706
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Stellar HostProfile
HD 28185
Unclassified star • 39.38 pc
Records
18
literature rows
Planets
2
system count
References
19
distinct source labels
HD: HD 28185TIC: TIC 37947783HIP: HIP 20723
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
1.10 Msun
0.97 to 1.24
Radius
1.04 Rsun
1.03 to 1.08
Age
2.50 Gyr
2.50 to 8.30
Luminosity
0.01 log(Lsun)
-0.01 to 0.02
Distance
39.38 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.04 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 28185
1.04 R☉
System Layout
Known planets
2 planets linked to this host
HD 28185 b
Radial Velocity
◌
Discovery
2001
Period
385.9 days
Radius
—
Mass
1859.3 M⊕
Eq. Temp
—
HD 28185 c
Radial Velocity
◌
Discovery
2022
Period
9090 days
Radius
—
Mass
1907.0 M⊕
Eq. Temp
—
HD 28185 and Its Two Known Planets
HD 28185 is a G5 star 128 light-years away. It is 2.5 billion years old, with 1.1 solar masses, 1.04 solar radii, and a temperature of 5710 K, cooler than the Sun. Two planets are known to orbit it.
HD 28185 b was found by radial velocity in 2001. Its minimum mass is 1860 Earth masses, and its orbital period is 386 days.
HD 28185 c was also found by radial velocity, in 2022. Its mass is 1910 Earth masses, and its orbital period is 9090 days. Its reported mass estimate is roughly 6 times Jupiter's mass.
Provenance
Underlying measurements and references
Evidence Summary
Rows
18
Stellar refs
18
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 |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | G5/6 V | 39.38 | Michigan Catalog, Vol. 5 | TICv8 |
| — | — | — | — | — | G6.5 IV-V | 39.38 | Gray et al. 2006 | TICv8 |
| 5656 | 0.98 | — | — | — | — | 39.38 | Santos et al. 2004 | TICv8 |
| 5622 | 1.02 | 1.08 | — | — | — | 39.38 | Rosenthal et al. 2021 | TICv8 |
| 5665 | — | 1.06 | — | 0.02 | — | 39.38 | Gaia DR2 | TICv8 |
| 5706 | 1.10 | 1.04 | 2.50 | 0.01 | — | 39.38 | Ghezzi et al. 2010 | TICv8 |
| — | 1.24 | — | — | — | G0 V | 39.38 | Minniti et al. 2009 | TICv8 |
| — | 0.99 | — | — | — | — | 39.38 | Feng et al. 2022 | TICv8 |
| 5621 | — | — | — | — | — | 39.38 | Suárez-Andrés et al. 2016 | TICv8 |
| 5662 | 1.02 | 1.03 | — | — | — | 39.38 | Stassun et al. 2017 | TICv8 |
| 5667 | 0.98 | — | — | 4.75e-3 | — | 39.38 | Sousa et al. 2008 | TICv8 |
| 5615 | 0.99 | 1.08 | — | 0.02 | — | 39.38 | TICv8 | TICv8 |
| — | — | — | — | — | — | 39.38 | Nordstrom et al. 2004 | TICv8 |
| 5546 | 0.98 | — | — | — | G5 | 39.38 | Wittenmyer et al. 2009 | TICv8 |
| 5705 | 0.99 | — | 7.50 | — | — | 39.38 | Santos et al. 2001 | TICv8 |
| 5662 | — | — | — | — | — | 39.38 | Maldonado et al. 2015 | TICv8 |
| 5602 | 0.97 | 1.05 | 8.30 | -0.01 | — | 39.38 | Venner et al. 2024 | TICv8 |
| — | — | — | — | — | G5 | 39.38 | Cannon & Pickering 1918 | TICv8 |