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Stellar HostProfile

TOI-4559

Unclassified star • 31.64 pc

Records

3

literature rows

Planets

1

system count

References

4

distinct source labels

TIC: TIC 271169413

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: Mistry et al. 2024 • System source: TICv8

Temperature

3558 K

3476 to 3558

3 values • 2 distinct

Mass

0.39 Msun

0.39 to 0.42

2 values • 2 distinct

Radius

0.37 Rsun

0.37 to 0.43

3 values • 2 distinct

Age

7 Gyr

single adopted value

1 values • 1 distinct

Luminosity

-1.69 log(Lsun)

-1.69 to -1.62

2 values • 2 distinct

Distance

31.64 pc

single adopted value

3 values • 1 distinct

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 0.37 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

TOI-4559

0.37 R☉

System Layout

Known planets

1 planets linked to this host

TOI-4559 b

Transit

◌

Discovery

2024

Period

3.97 days

Radius

1.42 R⊕

Mass

—

Eq. Temp

554.2 K

TOI-4559 and Its Earth-Like Planet

TOI-4559 is a star 103 light-years from Earth with one known planet orbiting it, TOI-4559 b. The host star is 7 billion years old, with a mass of 0.392 solar masses, a radius of 0.374 solar radii, and a temperature of 3560 K. Its reported mass, radius, and temperature are all smaller or cooler than the Sun's.

TOI-4559 b was discovered by the transit method in 2024. A transit occurs when a planet passes in front of its star from our viewpoint, dimming the observed brightness slightly. Repeated dips help establish the planet's orbital period, which for TOI-4559 b is 3.97 days. The planet has a radius of 1.42 Earth radii, larger than Earth's, and is classified as Earth-like, meaning its radius stays within 1.5 times Earth's.

The host star's age is 7 billion years.

Provenance

Underlying measurements and references

Download JSONDownload CSV

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

Agestable

1 values • 1 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

3 values • 2 distinct

Metallicitystable

1 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
35580.390.377-1.69—31.64Mistry et al. 2024TICv8
3476—0.43———31.64ExoFOPTICv8
34760.420.43—-1.62—31.64TICv8TICv8