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Stellar HostProfile

K2-138

G8 V • 202.6 pc

Records

7

literature rows

Planets

6

system count

References

8

distinct source labels

TIC: TIC 4610830

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

5283 K

5110.2 to 5378

7 values • 6 distinct

Mass

0.92 Msun

0.89 to 0.94

5 values • 5 distinct

Radius

0.86 Rsun

0.83 to 0.92

7 values • 6 distinct

Age

3.05 Gyr

2.80 to 3.30

2 values • 2 distinct

Luminosity

-0.29 log(Lsun)

-0.29 to -0.29

2 values • 2 distinct

Distance

202.6 pc

single adopted value

7 values • 1 distinct

Spectral Type

G8 V

Multiple classifications reported

G8 V (1), K1 V (1)

Planets

6

Stable across source rows

6

System Layout

Known planets

6 planets linked to this host

K2-138 b

Transit

Discovery

2017

Period

2.35 days

Radius

1.51 R⊕

Mass

3.10 M⊕

Eq. Temp

K2-138 d

Transit

Discovery

2017

Period

5.40 days

Radius

2.66 R⊕

Mass

Eq. Temp

K2-138 c

Transit

Discovery

2017

Period

3.56 days

Radius

2.26 R⊕

Mass

Eq. Temp

1012 K

K2-138 g

Transit

Discovery

2021

Period

41.97 days

Radius

Mass

2.56 M⊕

Eq. Temp

K2-138 e

Transit

Discovery

2017

Period

8.26 days

Radius

3.29 R⊕

Mass

Eq. Temp

K2-138 f

Transit

Discovery

2017

Period

12.76 days

Radius

2.73 R⊕

Mass

Eq. Temp

653 K

Provenance

Underlying measurements and references

Evidence Summary

Rows

7

Stellar refs

7

System refs

1

Distancestable

7 values • 1 distinct

Parallaxstable

7 values • 1 distinct

Temperaturedisputed

7 values • 6 distinct

Massdisputed

5 values • 5 distinct

Radiusdisputed

7 values • 6 distinct

Agedisputed

2 values • 2 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

6 values • 6 distinct

Metallicitydisputed

4 values • 4 distinct

Spectral Typedisputed

2 values • 2 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
52810.86202.6ExoFOPTICv8
5356.30.940.862.80202.6Lopez et al. 2019TICv8
53780.930.86K1 V202.6Christiansen et al. 2018TICv8
52830.920.84G8 V202.6Hardegree-Ullman et al. 2021TICv8
5354.70.890.833.30202.6Vivien et al. 2024TICv8
5110.20.92-0.29202.6Gaia DR2TICv8
52810.910.86-0.29202.6TICv8TICv8