Temperature
6071 K
5951.7 to 6112
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Stellar HostProfile
HD 74156
Unclassified star • 57.60 pc
Records
19
literature rows
Planets
2
system count
References
20
distinct source labels
TIC: TIC 379949822HD: HD 74156HIP: HIP 42723
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
1.20 Msun
1.10 to 1.27
Radius
1.49 Rsun
1.44 to 1.64
Age
5 Gyr
3.70 to 5
Luminosity
0.43 log(Lsun)
0.40 to 0.49
Distance
57.60 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.49 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 74156
1.49 R☉
System Layout
Known planets
2 planets linked to this host
HD 74156 b
Radial Velocity
◌
Discovery
2003
Period
51.64 days
Radius
—
Mass
532.4 M⊕
Eq. Temp
—
HD 74156 c
Radial Velocity
◌
Discovery
2003
Period
2448.5 days
Radius
—
Mass
2754.0 M⊕
Eq. Temp
—
HD 74156 and Its Two Planets
HD 74156 is a G0 star 188 light-years away with two known planets. The star is 5 billion years old, holds 1.2 solar masses, spans 1.49 solar radii, and has a temperature of 6070 K.
HD 74156 b was found in 2003 by radial velocity, which tracks the wobble a planet's gravity induces in its star. Its minimum mass is 532 Earth masses, a lower bound on its true mass, and it completes an orbit every 51.6 days. HD 74156 c, also found in 2003 by radial velocity, has a mass of 2750 Earth masses and an orbital period of 2450 days. Among the listed planets, HD 74156 b has the shortest year, while HD 74156 c has the longest.
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 |
|---|---|---|---|---|---|---|---|---|
| 6068 | 1.24 | — | — | — | G0 | 57.60 | Xiao et al. 2023 | TICv8 |
| — | — | — | — | — | G1 V | 57.60 | Michigan Catalog, Vol. 5 | TICv8 |
| — | 1.24 | 1.50 | 3.72 | — | — | 57.60 | Takeda et al. 2007 | TICv8 |
| — | — | — | — | — | G0 | 57.60 | Cannon & Pickering 1918 | TICv8 |
| 6068 | 1.24 | — | — | — | G0 | 57.60 | Wittenmyer et al. 2009 | TICv8 |
| 6099 | — | — | — | — | — | 57.60 | Suárez-Andrés et al. 2016 | TICv8 |
| 6105 | 1.27 | — | — | 0.49 | — | 57.60 | Naef et al. 2004 | TICv8 |
| 5960 | 1.24 | 1.64 | 3.70 | 0.48 | — | 57.60 | Meschiari et al. 2011 | TICv8 |
| 6112 | 1.27 | — | — | — | — | 57.60 | Santos et al. 2004 | TICv8 |
| 6105 | 1.27 | — | — | — | — | 57.60 | Santos et al. 2003 | TICv8 |
| — | — | — | — | — | — | 57.60 | Wright et al. 2004 | TICv8 |
| — | — | — | — | — | — | 57.60 | Nordstrom et al. 2004 | TICv8 |
| 6071 | 1.20 | 1.49 | 5 | 0.43 | — | 57.60 | Ghezzi et al. 2010 | TICv8 |
| 5977 | 1.10 | 1.48 | — | 0.40 | — | 57.60 | TICv8 | TICv8 |
| — | 1.24 | — | — | — | — | 57.60 | Bryan et al. 2016 | TICv8 |
| 5951.7 | 1.15 | 1.51 | — | — | — | 57.60 | Rosenthal et al. 2021 | TICv8 |
| — | — | — | — | — | — | 57.60 | Valenti & Fischer 2005 | TICv8 |
| — | 1.10 | — | — | — | — | 57.60 | Feng et al. 2022 | TICv8 |
| 6050 | — | 1.44 | — | 0.40 | — | 57.60 | Gaia DR2 | TICv8 |