Temperature
4135 K
3930.5 to 4135
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Stellar HostProfile
KOBE-1
K7 V • 23.97 pc
Records
5
literature rows
Planets
2
system count
References
6
distinct source labels
TIC: TIC 16917838HIP: HIP 5957
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: Balsalobre-Ruza et al. 2025 • System source: TICv8
Mass
0.63 Msun
0.56 to 0.63
Radius
0.62 Rsun
0.62 to 0.75
Luminosity
-1.00 log(Lsun)
-1.00 to -0.91
Distance
23.97 pc
single adopted value
Spectral Type
K7 V
Multiple classifications reported
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.62 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
KOBE-1
0.62 R☉
System Layout
Known planets
2 planets linked to this host
KOBE-1: A Cool Dwarf with Two Known Worlds
KOBE-1 is a K7 V star 78.2 light-years away, with a reported mass of 0.629 solar masses, a radius of 0.619 solar radii, and a temperature of 4140 K. Its mass and radius are smaller than the Sun's, and it is cooler than the Sun. Two planets are known to orbit it.
Both planets were discovered in 2025 by the radial velocity method, which detects the wobble a planet's gravity induces in its star. KOBE-1 b has a minimum mass of 8.8 Earth masses and an orbital period of 8.54 days. KOBE-1 c has a minimum mass of 12.4 Earth masses and an orbital period of 29.7 days. Both minimum masses are larger than Earth's, and each is a lower bound on the planet's true mass rather than an exact figure.
Among the listed planets, KOBE-1 b has the shortest year and the smallest minimum mass, while KOBE-1 c has the longest year and the largest minimum mass.
Provenance
Underlying measurements and references
Evidence Summary
Rows
5
Stellar refs
5
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typedisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | M0 V | 23.97 | Gray et al. 2003 | TICv8 |
| 4135 | 0.63 | 0.62 | — | -1.00 | K7 V | 23.97 | Balsalobre-Ruza et al. 2025 | TICv8 |
| — | — | — | — | — | K7 | 23.97 | Hawley et al. 1996 | TICv8 |
| 4040 | 0.56 | 0.67 | — | -0.96 | K5 | 23.97 | Turnbull 2015 | TICv8 |
| 3930.5 | 0.61 | 0.75 | — | -0.91 | — | 23.97 | TICv8 | TICv8 |