Temperature
5865 K
5732.7 to 6634
←Back to Stellar Hosts
Stellar HostProfile
K2-73
Unclassified star • 269.2 pc
Records
9
literature rows
Planets
2
system count
References
10
distinct source labels
TIC: TIC 38354061
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
1.06 Msun
1.02 to 1.06
Radius
1.06 Rsun
1.05 to 1.77
Luminosity
0.08 log(Lsun)
0.05 to 0.08
Distance
269.2 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.06 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-73
1.06 R☉
System Layout
Known planets
2 planets linked to this host
K2-73 and Its Two Planets
K2-73 is a star 878 light-years away with 1.06 solar masses and 1.06 solar radii, and a temperature of 5870 K, with a radius larger than the Sun's. Two planets orbit this host.
K2-73 b is a Neptune-like planet discovered by transit in 2016, with a mass of 9.2 Earth masses, a radius of 2.58 Earth radii, and an orbital period of 7.5 days. It has a mean density of 2.95 g/cm³, 0.536 times Earth's, the shortest reported year among the listed planets, and both its mass and radius are larger than Earth's.
K2-73 c was discovered by radial velocity in 2025, a method that measures the wobble a planet's gravity induces in its star's motion. Its minimum mass is 1140 Earth masses, and its orbital period is 1000 days, the longest reported year among the listed planets, with a minimum mass roughly 3.59 times Jupiter's mass.
Provenance
Underlying measurements and references
Evidence Summary
Rows
9
Stellar refs
9
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5865 | 1.06 | 1.06 | — | 0.08 | — | 269.2 | TICv8 | TICv8 |
| 5732.7 | — | 1.08 | — | 0.05 | — | 269.2 | Gaia DR2 | TICv8 |
| — | — | — | — | — | — | 269.2 | Barros et al. 2016 | TICv8 |
| 5922 | 1.05 | 1.06 | — | — | — | 269.2 | Crossfield et al. 2016 | TICv8 |
| — | — | 1.08 | — | — | — | 269.2 | Kruse et al. 2019 | TICv8 |
| 5867 | 1.02 | 1.06 | — | — | — | 269.2 | Howard et al. 2025 | TICv8 |
| — | — | — | — | — | — | 269.2 | Schmitt et al. 2016 | TICv8 |
| 5844 | 1.04 | 1.05 | — | — | — | 269.2 | Mayo et al. 2018 | TICv8 |
| 6634 | — | 1.77 | — | — | — | 269.2 | Vanderburg et al. 2016 | TICv8 |