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Stellar HostProfile

TYC 0434-04538-1

Unclassified star • 613.4 pc

Records

3

literature rows

Planets

1

system count

References

4

distinct source labels

TIC: TIC 398118692

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: Niedzielski et al. 2021 • System source: TICv8

Temperature

4679 K

4570.7 to 4679

3 values • 2 distinct

Mass

1.04 Msun

single adopted value

1 values • 1 distinct

Radius

9.99 Rsun

9.92 to 11.25

3 values • 3 distinct

Luminosity

1.67 log(Lsun)

1.59 to 1.67

2 values • 2 distinct

Distance

613.4 pc

single adopted value

3 values • 1 distinct

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 9.99 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

TYC 0434-04538-1

9.99 R☉

System Layout

Known planets

1 planets linked to this host

TYC 0434-04538-1 b

Radial Velocity

◌

Discovery

2021

Period

193.2 days

Radius

—

Mass

1938.8 M⊕

Eq. Temp

—

TYC 0434-04538-1 b: A Massive World Around a Cool Star

TYC 0434-04538-1 is a star 2000 light-years away with one known planet, TYC 0434-04538-1 b. The host star has a mass of 1.04 solar masses, a radius of 9.99 solar radii, and a temperature of 4680 K. Its reported radius estimate is larger than the Sun's, while its reported temperature is cooler than the Sun's.

The planet TYC 0434-04538-1 b was discovered in 2021 using the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion; repeated wobbles reveal the planet and its orbital period. The planet has a minimum mass of 1940 Earth masses, a lower bound on its true mass, and an orbital period of 193 days. Its minimum mass is larger than Earth's and roughly 6.1 times Jupiter's mass.

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

Massstable

1 values • 1 distinct

Radiusdisputed

3 values • 3 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitystable

1 values • 1 distinct

Metallicitystable

2 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
4570.7—9.92—1.59—613.4Gaia DR2TICv8
46791.049.99—1.67—613.4Niedzielski et al. 2021TICv8
4679—11.25———613.4TICv8TICv8