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Stellar HostProfile

HD 18438

M2.5 III • 224.1 pc

Records

2

literature rows

Planets

1

system count

References

3

distinct source labels

HIP: HIP 14417TIC: TIC 297820335HD: HD 18438

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

3857 K

3854 to 3860

2 values • 2 distinct

Mass

1.84 Msun

single adopted value

1 values • 1 distinct

Radius

79.66 Rsun

70.84 to 88.47

2 values • 2 distinct

Age

5.50 Gyr

single adopted value

1 values • 1 distinct

Luminosity

2.97 log(Lsun)

single adopted value

1 values • 1 distinct

Distance

224.1 pc

single adopted value

2 values • 1 distinct

Spectral Type

M2.5 III

Consistent across records

M2.5 III (1)

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 79.66 R☉ • circles scaled linearly by radius

Sun

1.0 R☉ baseline

HD 18438

79.66 R☉

System Layout

Known planets

1 planets linked to this host

HD 18438 b

Radial Velocity

◌

Discovery

2023

Period

803 days

Radius

—

Mass

6674.4 M⊕

Eq. Temp

—

Provenance

Underlying measurements and references

Evidence Summary

Rows

2

Stellar refs

2

System refs

1

Distancestable

2 values • 1 distinct

Parallaxstable

2 values • 1 distinct

Temperaturedisputed

2 values • 2 distinct

Massstable

1 values • 1 distinct

Radiusdisputed

2 values • 2 distinct

Agestable

1 values • 1 distinct

Luminositystable

1 values • 1 distinct

Surface Gravitystable

1 values • 1 distinct

Metallicitystable

1 values • 1 distinct

Spectral Typestable

1 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
3854—70.84———224.1TICv8TICv8
38601.8488.475.502.97M2.5 III224.1Lee et al. 2023TICv8