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Stellar HostProfile

HD 202696

K0 III-IV • 188.5 pc

Records

4

literature rows

Planets

2

system count

References

5

distinct source labels

HIP: HIP 105056TIC: TIC 25346878HD: HD 202696

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: Trifonov et al. 2019 • System source: TICv8

Temperature

5040 K

4951.4 to 5087

3 values • 3 distinct

Mass

1.91 Msun

single adopted value

1 values • 1 distinct

Radius

6.43 Rsun

6.01 to 6.43

3 values • 3 distinct

Age

1.32 Gyr

single adopted value

1 values • 1 distinct

Luminosity

1.37 log(Lsun)

1.29 to 1.37

2 values • 2 distinct

Distance

188.5 pc

single adopted value

4 values • 1 distinct

Spectral Type

K0 III-IV

Multiple classifications reported

K0 III-IV (1), K2 (1)

Planets

2

Stable across source rows

2

Scale Comparison

Radius against the Sun

Current adopted radius: 6.43 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

HD 202696

6.43 R☉

System Layout

Known planets

2 planets linked to this host

HD 202696 b

Radial Velocity

◌

Discovery

2019

Period

517.8 days

Radius

—

Mass

634.4 M⊕

Eq. Temp

—

HD 202696 c

Radial Velocity

◌

Discovery

2019

Period

946.6 days

Radius

—

Mass

592.4 M⊕

Eq. Temp

—

HD 202696 and Its Two Known Planets

HD 202696 is a star 615 light-years away with two planets. Its spectral type, K0 III-IV, places it among the cooler K-class stars, and its reported temperature of 5040 K is cooler than the Sun's. The star's reported mass of 1.91 solar masses and radius of 6.43 solar radii are both larger than the Sun's, and it is estimated to be 1.32 billion years old.

Both planets were discovered in 2019 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. HD 202696 b has a reported lower limit of 634.38868 Earth masses and an orbital period of 518 days, the shortest among the listed planets. HD 202696 c has a reported lower limit of 592.43512 Earth masses and an orbital period of 947 days, the longest among the listed planets.

Provenance

Underlying measurements and references

Download JSONDownload CSV

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

Metallicitystable

1 values • 1 distinct

Spectral Typedisputed

2 values • 2 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
50401.916.431.321.37K0 III-IV188.5Trifonov et al. 2019TICv8
5087—6.09———188.5TICv8TICv8
—————K2188.5Cannon & Pickering 1918TICv8
4951.4—6.01—1.29—188.5Gaia DR2TICv8