Temperature
3357.6 K
3264 to 3698.5
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Stellar HostProfile
GJ 1148
Unclassified star • 11.01 pc
Records
6
literature rows
Planets
2
system count
References
7
distinct source labels
HIP: HIP 57050TIC: TIC 115869504
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: Rosenthal et al. 2021 • System source: TICv8
Mass
0.37 Msun
0.34 to 0.37
Radius
0.37 Rsun
0.36 to 0.40
Distance
11.01 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.37 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
GJ 1148
0.37 R☉
System Layout
Known planets
2 planets linked to this host
The GJ 1148 System and Its Two Worlds
GJ 1148 is an M4 red dwarf, a small, cool star, located 35.9 light-years away. Two planets orbit this star. Its reported mass is 0.374 solar masses, its radius is 0.367 solar radii, and its temperature is 3360 K, all smaller or cooler than the corresponding values for the Sun.
Both planets were found by the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion. GJ 1148 b was discovered in 2010, and its minimum mass is 96.7 Earth masses, larger than Earth's, with an orbital period of 41.4 days, the shortest year among the listed planets. GJ 1148 c, discovered in 2017, has a minimum mass of 68.1 Earth masses, also larger than Earth's, and an orbital period of 533 days, the longest year among the listed planets. Among the two, GJ 1148 c has the smallest minimum mass, while GJ 1148 b has the largest.
Provenance
Underlying measurements and references
Evidence Summary
Rows
6
Stellar refs
6
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitystable
Spectral Typedisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 3357.6 | 0.37 | 0.37 | — | — | — | 11.01 | Rosenthal et al. 2021 | TICv8 |
| 3287 | 0.34 | 0.36 | — | -1.87 | — | 11.01 | TICv8 | TICv8 |
| 3264 | 0.35 | 0.40 | — | -1.70 | M5 | 11.01 | Turnbull 2015 | TICv8 |
| 3698.5 | — | — | — | — | — | 11.01 | Gaia DR2 | TICv8 |
| — | — | — | — | — | — | 11.01 | Nidever et al. 2002 | TICv8 |
| — | — | — | — | — | M4 | 11.01 | Hawley et al. 1996 | TICv8 |