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Stellar HostProfile

GJ 2126

M0 V • 38.13 pc

Records

2

literature rows

Planets

1

system count

References

3

distinct source labels

TIC: TIC 44082776HIP: HIP 83941

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: Schorr et al. 2025 • System source: TICv8

Temperature

4159 K

single adopted value

2 values • 1 distinct

Mass

0.65 Msun

single adopted value

2 values • 1 distinct

Radius

0.73 Rsun

0.73 to 0.73

2 values • 2 distinct

Luminosity

-0.85 log(Lsun)

-0.85 to -0.85

2 values • 2 distinct

Distance

38.13 pc

single adopted value

2 values • 1 distinct

Spectral Type

M0 V

Consistent across records

M0 V (1)

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 0.73 R☉ • circles scaled linearly by radius

Sun

1.0 R☉ baseline

GJ 2126

0.73 R☉

System Layout

Known planets

1 planets linked to this host

GJ 2126 b

Radial Velocity

◌

Discovery

2025

Period

272.7 days

Radius

—

Mass

413.2 M⊕

Eq. Temp

—

GJ 2126 b: A Giant Planet Orbiting a Small Red Dwarf

GJ 2126 is an M0 V star, a small, cool red dwarf, located 124 light-years away. Its reported mass estimate is 0.65 solar masses and its radius estimate is 0.728 solar radii, both smaller than the Sun's. The star's reported temperature of 4160 K is cooler than the Sun's. One planet orbits this host.

GJ 2126 b was discovered in 2025 by the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion; repeated wobbles reveal the planet and its orbital period. The planet's minimum mass is 413 Earth masses, a lower bound on its true mass, and it completes one orbit every 273 days. Its minimum mass is larger than Earth's and roughly 1.3 times Jupiter's mass.

Provenance

Underlying measurements and references

Download JSONDownload CSV

Evidence Summary

Rows

2

Stellar refs

2

System refs

1

Distancestable

2 values • 1 distinct

Parallaxstable

2 values • 1 distinct

Temperaturestable

2 values • 1 distinct

Massstable

2 values • 1 distinct

Radiusdisputed

2 values • 2 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

2 values • 2 distinct

Metallicitystable

1 values • 1 distinct

Spectral Typestable

1 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
41590.650.73—-0.85M0 V38.13Schorr et al. 2025TICv8
41590.650.73—-0.85—38.13TICv8TICv8