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Stellar HostProfile

TOI-5388

M3.0 V • 18.52 pc

Records

4

literature rows

Planets

1

system count

References

5

distinct source labels

TIC: TIC 407591297

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: Poultourtzidis et al. 2026 • System source: TICv8

Temperature

3440 K

3440 to 3495

4 values • 2 distinct

Mass

0.29 Msun

0.29 to 0.29

3 values • 3 distinct

Radius

0.30 Rsun

0.30 to 0.31

4 values • 3 distinct

Luminosity

-1.95 log(Lsun)

-1.95 to -1.88

2 values • 2 distinct

Distance

18.52 pc

single adopted value

4 values • 1 distinct

Spectral Type

M3.0 V

Consistent across records

M3.0 V (1)

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 0.30 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

TOI-5388

0.30 R☉

System Layout

Known planets

1 planets linked to this host

◌

Discovery

2024

Period

2.59 days

Radius

0.99 R⊕

Mass

2.20 M⊕

Eq. Temp

488 K

TOI-5388 and Its Sub-Earth Planet

TOI-5388 is an M3.0 V star, a small, cool red dwarf, located 60.4 light-years away. Its reported mass is 0.292 solar masses, its radius is 0.3 solar radii, and its temperature is 3440 K. These figures make the star less massive, smaller, and cooler than the Sun. One known planet orbits this host.

That planet is TOI-5388.01, a Sub-Earth discovered in 2024 by the transit method, in which a planet passing in front of its star dims the star's light slightly. With a radius of 0.99 Earth radii, it is smaller than Earth, as its size class indicates. Its mass is reported as an upper limit of 2.2 Earth masses. The planet completes an orbit every 2.59 days, making its year a brief one.

Provenance

Underlying measurements and references

Download JSONDownload CSV

Evidence Summary

Rows

4

Stellar refs

4

System refs

1

Distancestable

4 values • 1 distinct

Parallaxstable

4 values • 1 distinct

Temperaturedisputed

4 values • 2 distinct

Massdisputed

3 values • 3 distinct

Radiusdisputed

4 values • 3 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

4 values • 2 distinct

Metallicitystable

1 values • 1 distinct

Spectral Typestable

1 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
34400.290.30—-1.95M3.0 V18.52Poultourtzidis et al. 2026TICv8
34950.290.31—-1.88—18.52TICv8TICv8
34950.290.31———18.52Hord et al. 2024TICv8
3495—0.31———18.52ExoFOPTICv8