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Stellar HostProfile

TOI-2257

M3 • 57.79 pc

Records

3

literature rows

Planets

1

system count

References

4

distinct source labels

TIC: TIC 198485881

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

3446 K

3430 to 3446

3 values • 2 distinct

Mass

0.32 Msun

0.31 to 0.33

2 values • 2 distinct

Radius

0.33 Rsun

0.31 to 0.33

3 values • 2 distinct

Luminosity

-1.87 log(Lsun)

single adopted value

1 values • 1 distinct

Distance

57.79 pc

single adopted value

3 values • 1 distinct

Spectral Type

M3

Consistent across records

M3 (1)

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 0.33 R☉ • circles scaled linearly by radius

Sun

1.0 R☉ baseline

TOI-2257

0.33 R☉

System Layout

Known planets

1 planets linked to this host

TOI-2257 b

Transit

◌

Discovery

2021

Period

35.19 days

Radius

2.19 R⊕

Mass

—

Eq. Temp

256 K

Provenance

Underlying measurements and references

Evidence Summary

Rows

3

Stellar refs

3

System refs

1

Distancestable

3 values • 1 distinct

Parallaxstable

3 values • 1 distinct

Temperaturedisputed

3 values • 2 distinct

Massdisputed

2 values • 2 distinct

Radiusdisputed

3 values • 2 distinct

Luminositystable

1 values • 1 distinct

Surface Gravitydisputed

3 values • 2 distinct

Metallicitystable

1 values • 1 distinct

Spectral Typestable

1 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
3446—0.33———57.79ExoFOPTICv8
34300.330.31——M357.79Schanche et al. 2022TICv8
34460.310.33—-1.87—57.79TICv8TICv8