Temperature
5336 K
5243 to 5336
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Stellar HostProfile
HD 46375
Unclassified star • 29.55 pc
Records
16
literature rows
Planets
1
system count
References
17
distinct source labels
HIP: HIP 31246HD: HD 46375TIC: TIC 234928947
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
0.95 Msun
0.82 to 1
Radius
1 Rsun
0.89 to 1
Age
9 Gyr
9 to 11.88
Luminosity
-0.14 log(Lsun)
-0.25 to -0.14
Distance
29.55 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 46375
1 R☉
System Layout
Known planets
1 planets linked to this host
HD 46375 b
Radial Velocity
◌
Discovery
2000
Period
3.02 days
Radius
—
Mass
71.80 M⊕
Eq. Temp
—
HD 46375 and Its Close-Orbiting Planet
HD 46375 is a K0 V star located 96.4 light-years away. Its spectral type identifies it as a main-sequence K-type dwarf, a class cooler than the Sun. The star's reported temperature of 5340 K is likewise cooler than the Sun's. Stellar measurements for this host include an age of 9 billion years, a mass of 0.95 solar masses, and a radius of 1 solar radii. One planet is known to orbit this host.
That planet, HD 46375 b, was discovered in 2000 using the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion. HD 46375 b has a minimum mass of 71.8 Earth masses, a lower bound on its true mass and therefore larger than Earth's. It completes an orbit in 3.02 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
16
Stellar refs
16
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 |
|---|---|---|---|---|---|---|---|---|
| 5336 | 0.95 | 1 | 9 | -0.14 | — | 29.55 | Ghezzi et al. 2010 | TICv8 |
| — | 0.93 | 0.94 | 11.88 | — | — | 29.55 | Takeda et al. 2007 | TICv8 |
| — | — | — | — | — | K0 V | 29.55 | Gray et al. 2003 | TICv8 |
| — | — | — | — | — | — | 29.55 | Nidever et al. 2002 | TICv8 |
| — | — | — | — | — | — | 29.55 | Wright et al. 2004 | TICv8 |
| 5303 | — | — | — | — | — | 29.55 | Maldonado et al. 2015 | TICv8 |
| 5268 | 0.82 | — | — | — | — | 29.55 | Santos et al. 2004 | TICv8 |
| 5243 | 0.90 | 0.92 | — | -0.24 | — | 29.55 | TICv8 | TICv8 |
| — | — | — | — | — | — | 29.55 | Nordstrom et al. 2004 | TICv8 |
| 5313.2 | — | 0.89 | — | -0.25 | — | 29.55 | Gaia DR2 | TICv8 |
| 5285 | 0.92 | — | — | — | — | 29.55 | Butler et al. 2006 | TICv8 |
| 5315 | 0.83 | — | — | — | — | 29.55 | Santos et al. 2003 | TICv8 |
| — | — | — | — | — | G5 | 29.55 | Cannon & Pickering 1918 | TICv8 |
| 5264.4 | 0.93 | 0.91 | — | — | — | 29.55 | Rosenthal et al. 2021 | TICv8 |
| — | — | — | — | — | — | 29.55 | Valenti & Fischer 2005 | TICv8 |
| — | 1 | — | — | — | K1 IV-V | 29.55 | Marcy et al. 2000 | TICv8 |