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Stellar HostProfile

TIC 390586021

Unclassified star • 114.6 pc

Records

2

literature rows

Planets

1

system count

References

3

distinct source labels

TIC: TIC 390586021

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

4139 K

4139 to 4434.8

2 values • 2 distinct

Mass

0.65 Msun

single adopted value

1 values • 1 distinct

Radius

0.73 Rsun

single adopted value

2 values • 1 distinct

Luminosity

-0.86 log(Lsun)

single adopted value

1 values • 1 distinct

Distance

114.6 pc

single adopted value

2 values • 1 distinct

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 0.73 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

TIC 390586021

0.73 R☉

System Layout

Known planets

1 planets linked to this host

◌

Discovery

2026

Period

2.75 days

Radius

2.86 R⊕

Mass

—

Eq. Temp

—

TIC 390586021 b: A Close-In Neptune-Like World

TIC 390586021 is a single star located 374 light-years away. Its mass is 0.648 solar masses, its radius is 0.727 solar radii, and its temperature is 4140 K. All three values are smaller or cooler than the Sun's corresponding properties. One known planet orbits this host.

That planet, TIC 390586021 b, is a Neptune-like world discovered by transit in 2026. A transit occurs when a planet crosses in front of its star from our viewpoint, dimming the starlight slightly; repeated dips help establish the planet's orbital period. TIC 390586021 b completes one orbit every 2.75 days. Its radius is 2.86 Earth radii, larger than Earth's, and that radius places it within the size class of Neptune-like planets, which extends up to four times Earth's radius.

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
4434.8—0.73———114.6Lafarga et al. 2026TICv8
41390.650.73—-0.86—114.6TICv8TICv8