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Stellar HostProfile

TIC 198190129

Unclassified star • 130.0 pc

Records

2

literature rows

Planets

1

system count

References

3

distinct source labels

TIC: TIC 198190129

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: TICv8 • System source: TICv8

Temperature

4075 K

4075 to 4377.5

2 values • 2 distinct

Mass

0.64 Msun

single adopted value

1 values • 1 distinct

Radius

0.64 Rsun

single adopted value

2 values • 1 distinct

Luminosity

-0.99 log(Lsun)

single adopted value

1 values • 1 distinct

Distance

130.0 pc

single adopted value

2 values • 1 distinct

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 0.64 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

TIC 198190129

0.64 R☉

System Layout

Known planets

1 planets linked to this host

◌

Discovery

2026

Period

7.95 days

Radius

2.92 R⊕

Mass

—

Eq. Temp

—

TIC 198190129 b: A Neptune-Like World Around a Small Cool Star

TIC 198190129 is a star 424 light-years away with one known planet. The host star has a mass of 0.638 solar masses, a radius of 0.641 solar radii, and a temperature of 4080 K. Its reported mass and radius estimates are smaller than the Sun's, and its reported temperature is cooler than the Sun's.

The planet TIC 198190129 b is Neptune-like, a size class that reaches up to 4 times Earth's radius. It was discovered by transit in 2026. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. Repeated dips help establish orbital periods.

TIC 198190129 b orbits every 7.95 days and has a radius of 2.92 Earth radii, which is larger than Earth's.

Provenance

Underlying measurements and references

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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

Radiusstable

2 values • 1 distinct

Luminositystable

1 values • 1 distinct

Surface Gravitydisputed

2 values • 2 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
4377.5—0.64———130.0Lafarga et al. 2026TICv8
40750.640.64—-0.99—130.0TICv8TICv8