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Stellar HostProfile

HD 158996

K5 III • 283.7 pc

Records

4

literature rows

Planets

1

system count

References

5

distinct source labels

TIC: TIC 288268410HD: HD 158996HIP: HIP 84769

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: Bang et al. 2018 • System source: TICv8

Temperature

4069 K

4062.5 to 4115.0

3 values • 3 distinct

Mass

1.80 Msun

single adopted value

1 values • 1 distinct

Radius

50.30 Rsun

50.30 to 58.84

3 values • 3 distinct

Age

1.60 Gyr

single adopted value

1 values • 1 distinct

Luminosity

3.01 log(Lsun)

2.93 to 3.01

2 values • 2 distinct

Distance

283.7 pc

single adopted value

4 values • 1 distinct

Spectral Type

K5 III

Multiple classifications reported

K2 (1), K5 III (1)

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 50.30 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

HD 158996

50.30 R☉

System Layout

Known planets

1 planets linked to this host

HD 158996 b

Radial Velocity

◌

Discovery

2018

Period

820.2 days

Radius

—

Mass

4449.6 M⊕

Eq. Temp

—

HD 158996 b: A Giant Planet Orbiting a Cool Giant Star

HD 158996 is a K5 III star located 925 light-years away. It is host to one known planet. The star is estimated to be 1.6 billion years old, with a mass of 1.8 solar masses and a radius of 50.3 solar radii. Its temperature is 4070 K. The star's reported mass and radius estimates are larger than the Sun's, and its reported temperature is cooler than the Sun's.

The system's only known planet, HD 158996 b, was discovered in 2018 using the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion. The planet has a minimum mass of 4450 Earth masses, meaning its true mass is at least this value. This minimum mass is larger than Earth's and roughly 14 times Jupiter's mass. HD 158996 b completes one orbit in 820 days.

Provenance

Underlying measurements and references

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Evidence Summary

Rows

4

Stellar refs

4

System refs

1

Distancestable

4 values • 1 distinct

Parallaxstable

4 values • 1 distinct

Temperaturedisputed

3 values • 3 distinct

Massstable

1 values • 1 distinct

Radiusdisputed

3 values • 3 distinct

Agestable

1 values • 1 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitystable

1 values • 1 distinct

Metallicitydisputed

2 values • 2 distinct

Spectral Typedisputed

2 values • 2 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
40691.8050.301.603.01K5 III283.7Bang et al. 2018TICv8
4115.0—56.70———283.7TICv8TICv8
—————K2283.7Cannon & Pickering 1918TICv8
4062.5—58.84—2.93—283.7Gaia DR2TICv8