Temperature
4757 K
4738 to 4829
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Stellar HostProfile
HD 145457
Unclassified star • 135.3 pc
Records
7
literature rows
Planets
1
system count
References
8
distinct source labels
HD: HD 145457HIP: HIP 79219TIC: TIC 236339228
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: Sato et al. 2010 • System source: TICv8
Mass
1.90 Msun
1 to 1.90
Radius
9.90 Rsun
9.48 to 10.52
Luminosity
1.66 log(Lsun)
1.66 to 1.70
Distance
135.3 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 9.90 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 145457
9.90 R☉
System Layout
Known planets
1 planets linked to this host
HD 145457 b
Radial Velocity
◌
Discovery
2010
Period
176.1 days
Radius
—
Mass
888.0 M⊕
Eq. Temp
—
HD 145457 and Its Planet
HD 145457 is a K0 star 441 light-years away. Its reported mass is 1.9 solar masses and its reported radius is 9.9 solar radii, both larger than the Sun's. Its temperature is 4760 K, cooler than the Sun's. One planet orbits this host.
That planet, HD 145457 b, was discovered in 2010 by the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion. Its minimum mass is 888 Earth masses, larger than Earth's and roughly 2.79 times Jupiter's mass. Its orbital period is 176 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
7
Stellar refs
7
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | 1 | — | — | — | — | 135.3 | Kunitomo et al. 2011 | TICv8 |
| 4757 | 1.90 | 9.90 | — | 1.66 | — | 135.3 | Sato et al. 2010 | TICv8 |
| — | — | — | — | — | K0 | 135.3 | Cannon & Pickering 1918 | TICv8 |
| 4738 | — | 10.49 | — | 1.70 | — | 135.3 | Gaia DR2 | TICv8 |
| 4769 | 1.23 | 10.52 | — | — | — | 135.3 | Stassun et al. 2017 | TICv8 |
| 4829 | 1.53 | 9.48 | 2.60 | — | — | 135.3 | Sousa et al. 2015 | TICv8 |
| 4807.2 | — | 10.21 | — | — | — | 135.3 | TICv8 | TICv8 |