Temperature
3827 K
3827 to 4021.4
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Stellar HostProfile
HIP 54373
Unclassified star • 18.72 pc
Records
4
literature rows
Planets
2
system count
References
5
distinct source labels
TIC: TIC 410407964HIP: HIP 54373
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: TICv8 • System source: TICv8
Mass
0.56 Msun
0.50 to 0.57
Radius
0.56 Rsun
0.50 to 0.57
Luminosity
-1.21 log(Lsun)
-1.22 to -1.16
Distance
18.72 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.56 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HIP 54373
0.56 R☉
System Layout
Known planets
2 planets linked to this host
HIP 54373 b
Radial Velocity
◌
Discovery
2019
Period
7.76 days
Radius
—
Mass
8.62 M⊕
Eq. Temp
—
HIP 54373 c
Radial Velocity
◌
Discovery
2019
Period
15.14 days
Radius
—
Mass
12.44 M⊕
Eq. Temp
—
HIP 54373 and Its Two Worlds
HIP 54373 is a K5 V star, a K-type main-sequence dwarf, located 61 light-years away. Its reported mass is 0.559 solar masses, its radius is 0.565 solar radii, and its temperature is 3830 K, all smaller or cooler than the Sun's corresponding values. Two planets are known to orbit this star.
HIP 54373 b was discovered in 2019 by the radial velocity method, which detects the wobble a planet's gravity induces in its star. It has a minimum mass of 8.62 Earth masses and an orbital period of 7.76 days. HIP 54373 c, also found by radial velocity in 2019, has a minimum mass of 12.4 Earth masses and an orbital period of 15.1 days. Both minimum masses are lower bounds on the planets' true masses and are larger than Earth's mass.
Among these two planets, HIP 54373 b has the shortest year and the smallest minimum mass, while HIP 54373 c has the longest year and the largest minimum mass.
Provenance
Underlying measurements and references
Evidence Summary
Rows
4
Stellar refs
4
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositydisputed
Surface Gravitystable
Spectral Typedisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 4021.4 | — | 0.50 | — | -1.22 | — | 18.72 | Gaia DR2 | TICv8 |
| 4021 | 0.57 | — | — | — | K5 V | 18.72 | Feng et al. 2019 | TICv8 |
| 3827 | 0.56 | 0.56 | — | -1.21 | — | 18.72 | TICv8 | TICv8 |
| 3848 | 0.50 | 0.57 | — | -1.16 | K5 | 18.72 | Turnbull 2015 | TICv8 |