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Stellar HostProfile

GJ 229

K5 • 5.76 pc

Records

13

literature rows

Planets

2

system count

References

14

distinct source labels

HIP: HIP 29295TIC: TIC 124279525HD: HD 42581

Approximate color

from effective temperature

Canonical Summary

Adopted host values from all rows

Numeric fields use the median of non-null measurements. Disagreement stays visible through ranges, counts, and provenance.

Temperature

3710 K

3564 to 3912.5

3 values • 3 distinct

Mass

0.54 Msun

0.48 to 0.58

5 values • 4 distinct

Radius

0.46 Rsun

0.46 to 0.55

3 values • 2 distinct

Age

0.40 Gyr

single adopted value

1 values • 1 distinct

Luminosity

-1.39 log(Lsun)

-1.55 to -1.22

2 values • 2 distinct

Distance

5.76 pc

single adopted value

13 values • 1 distinct

Spectral Type

K5

Multiple classifications reported

K5 (1), M0.5 (1), M1.5V (1), M1/2 V (1), M1/M2 V (1)

Planets

2

Stable across source rows

2

System Layout

Known planets

2 planets linked to this host

GJ 229 b

Radial Velocity

Discovery

2014

Period

579.5 days

Radius

Mass

14.94 M⊕

Eq. Temp

GJ 229 A c

Radial Velocity

Discovery

2020

Period

121.9 days

Radius

Mass

8.58 M⊕

Eq. Temp

Provenance

Underlying measurements and references

Evidence Summary

Rows

13

Stellar refs

13

System refs

1

Distancestable

13 values • 1 distinct

Parallaxstable

13 values • 1 distinct

Temperaturedisputed

3 values • 3 distinct

Massdisputed

5 values • 4 distinct

Radiusdisputed

3 values • 2 distinct

Agestable

1 values • 1 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

3 values • 2 distinct

Spectral Typedisputed

5 values • 5 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
0.460.405.76Takeda et al. 2007TICv8
5.76Nordstrom et al. 2004TICv8
35640.58-1.55M1/M2 V5.76Tuomi et al. 2014TICv8
37100.480.46-1.22M1.5V5.76Turnbull 2015TICv8
3912.55.76Gaia DR2TICv8
5.76Nidever et al. 2002TICv8
0.515.76Feng et al. 2022TICv8
5.76Wright et al. 2004TICv8
0.540.555.76TICv8TICv8
M0.55.76Hawley et al. 1996TICv8
M1/2 V5.76Michigan Catalog, Vol. 4TICv8
K55.76Cannon & Pickering 1918TICv8
0.585.76Feng et al. 2020TICv8