Temperature
5155 K
5027 to 5155
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Stellar HostProfile
HD 152581
Unclassified star • 165.8 pc
Records
7
literature rows
Planets
1
system count
References
8
distinct source labels
HIP: HIP 82651TIC: TIC 353181458HD: HD 152581
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: Johnson et al. 2011 • System source: TICv8
Mass
0.93 Msun
0.93 to 1.72
Radius
4.80 Rsun
4.37 to 5.14
Age
12 Gyr
2.85 to 12
Luminosity
1.17 log(Lsun)
1.10 to 1.17
Distance
165.8 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 4.80 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 152581
4.80 R☉
System Layout
Known planets
1 planets linked to this host
HD 152581 b
Radial Velocity
◌
Discovery
2011
Period
686.5 days
Radius
—
Mass
594.0 M⊕
Eq. Temp
—
HD 152581 and Its Single Known Planet
HD 152581 is a K0 star 541 light-years away. It is 12 billion years old and has a mass of 0.927 solar masses, a radius of 4.8 solar radii, and a temperature of 5160 K. Its reported mass estimate is smaller than the Sun's, its reported radius estimate is larger than the Sun's, and its reported temperature is cooler than the Sun's.
One planet orbits this host. HD 152581 b was discovered in 2011 by the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion. Its minimum mass is 594 Earth masses, a lower bound on its true mass, and this is roughly 1.87 times Jupiter's mass. Its minimum mass is larger than Earth's, and it completes one orbit every 687 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
7
Stellar refs
7
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5155 | 0.93 | 4.80 | 12 | 1.17 | — | 165.8 | Johnson et al. 2011 | TICv8 |
| 5095 | 1.72 | 4.80 | — | — | — | 165.8 | Stassun et al. 2017 | TICv8 |
| — | — | — | — | — | K0 | 165.8 | Cannon & Pickering 1918 | TICv8 |
| 5027 | 1.30 | 5.14 | — | — | — | 165.8 | Luhn et al. 2019 | TICv8 |
| 5095 | 1.40 | 4.37 | 2.85 | — | — | 165.8 | Sousa et al. 2015 | TICv8 |
| 5027 | — | 4.82 | — | — | — | 165.8 | TICv8 | TICv8 |
| 5042 | — | 4.67 | — | 1.10 | — | 165.8 | Gaia DR2 | TICv8 |