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Stellar HostProfile

ups Leo

G9 III • 52.60 pc

Records

2

literature rows

Planets

1

system count

References

3

distinct source labels

TIC: TIC 49430557

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: Teng et al. 2022 • System source: TICv8

Temperature

4836 K

4836 to 4919

2 values • 2 distinct

Mass

1.48 Msun

single adopted value

1 values • 1 distinct

Radius

11.22 Rsun

10.36 to 11.22

2 values • 2 distinct

Luminosity

1.80 log(Lsun)

single adopted value

1 values • 1 distinct

Distance

52.60 pc

single adopted value

2 values • 1 distinct

Spectral Type

G9 III

Consistent across records

G9 III (1)

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 11.22 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

ups Leo

11.22 R☉

System Layout

Known planets

1 planets linked to this host

ups Leo b

Radial Velocity

◌

Discovery

2021

Period

385.2 days

Radius

—

Mass

162.1 M⊕

Eq. Temp

—

ups Leo: A Giant Star and Its One Known Planet

ups Leo is a G9 III star located 172 light-years away, with a reported mass of 1.48 solar masses, a radius of 11.2 solar radii, and a temperature of 4840 K. Its mass and radius are larger than the Sun's, and its temperature is cooler than the Sun's. One known planet orbits this host.

That planet is ups Leo b, discovered by the radial velocity method in 2021. The radial velocity method measures the wobble a planet's gravity induces in its star's motion, and repeated wobbles reveal the planet and its orbital period. ups Leo b has a minimum mass of 162 Earth masses, larger than Earth's, and an orbital period of 385 days.

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

Radiusdisputed

2 values • 2 distinct

Luminositystable

1 values • 1 distinct

Surface Gravitystable

1 values • 1 distinct

Metallicitystable

1 values • 1 distinct

Spectral Typestable

1 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
4919—10.36———52.60TICv8TICv8
48361.4811.22—1.80G9 III52.60Teng et al. 2022TICv8