Temperature
5131 K
5125 to 5175.2
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Stellar HostProfile
HD 15337
Unclassified star • 44.82 pc
Records
10
literature rows
Planets
2
system count
References
10
distinct source labels
HD: HD 15337TIC: TIC 120896927HIP: HIP 11433
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: Dumusque et al. 2019 • System source: TICv8
Mass
0.85 Msun
0.83 to 0.90
Radius
0.84 Rsun
0.84 to 0.86
Age
7.50 Gyr
5.10 to 9.60
Luminosity
-0.33 log(Lsun)
-0.34 to -0.33
Distance
44.82 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.84 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 15337
0.84 R☉
System Layout
Known planets
2 planets linked to this host
HD 15337 b
Transit
◌
Discovery
2019
Period
4.76 days
Radius
1.77 R⊕
Mass
6.52 M⊕
Eq. Temp
—
HD 15337 c
Transit
◌
Discovery
2019
Period
17.18 days
Radius
2.53 R⊕
Mass
6.79 M⊕
Eq. Temp
—
HD 15337 and Its Two Known Planets
HD 15337 is a K1 V star located 146 light-years away. Its spectral type indicates a main-sequence dwarf somewhat cooler and redder than the Sun. The star has a mass of 0.851 solar masses and a radius of 0.839 solar radii, both smaller than the Sun's corresponding values, and a temperature of 5130 K, which is cooler than the Sun's. It is estimated to be 7.5 billion years old. Two planets are known to orbit this host.
HD 15337 b is a Super-Earth discovered by transit in 2019. Its radius is 1.77 Earth radii and its mass is 6.52 Earth masses, both larger than Earth's. Its mean density is 6.48 g/cm³, 1.18 times Earth's. It completes an orbit in 4.76 days.
HD 15337 c is a Neptune-like planet, also discovered by transit in 2019. It has a radius of 2.53 Earth radii and a mass of 6.79 Earth masses, each larger than Earth's. Its mean density is 2.32 g/cm³, 0.421 times Earth's. Its orbital period is 17.2 days.
Among the listed planets, HD 15337 b has the shortest year and the smallest radius and reported mass, while HD 15337 c has the longest year and the largest radius and reported mass.
Provenance
Underlying measurements and references
Evidence Summary
Rows
10
Stellar refs
9
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 |
|---|---|---|---|---|---|---|---|---|
| 5131 | 0.85 | 0.84 | 7.50 | -0.33 | — | 44.82 | Dumusque et al. 2019 | TICv8 |
| 5165.5 | — | 0.85 | — | -0.34 | — | 44.82 | Gaia DR2 | TICv8 |
| — | — | — | — | — | — | 44.82 | Nordstrom et al. 2004 | TICv8 |
| — | — | — | — | — | K1 V | 44.82 | Michigan Catalog, Vol. 3 | TICv8 |
| 5131 | 0.83 | 0.85 | 9.60 | — | — | 44.82 | Rosário et al. 2024 | TICv8 |
| 5175.2 | — | 0.84 | — | — | — | 44.82 | ExoFOP | TICv8 |
| 5175.2 | 0.88 | 0.84 | — | -0.34 | — | 44.82 | TICv8 | TICv8 |
| — | — | — | — | — | G5 | 44.82 | Cannon & Pickering 1918 | TICv8 |
| 5175.2 | — | 0.84 | — | — | — | 44.82 | ExoFOP | TICv8 |
| 5125 | 0.90 | 0.86 | 5.10 | — | K1 V | 44.82 | Gandolfi et al. 2019 | TICv8 |