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Stellar HostProfile

HD 208897

K0 • 67.49 pc

Records

4

literature rows

Planets

1

system count

References

5

distinct source labels

TIC: TIC 423862056HD: HD 208897HIP: HIP 108513

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: Yılmaz et al. 2017 • System source: TICv8

Temperature

4860 K

4860 to 4935.4

3 values • 3 distinct

Mass

1.25 Msun

single adopted value

1 values • 1 distinct

Radius

4.98 Rsun

4.79 to 4.98

3 values • 3 distinct

Luminosity

1.09 log(Lsun)

1.09 to 1.09

2 values • 2 distinct

Distance

67.49 pc

single adopted value

4 values • 1 distinct

Spectral Type

K0

Consistent across records

K0 (2)

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 4.98 R☉ • circles scaled linearly by radius

Sun

1.0 R☉ baseline

HD 208897

4.98 R☉

System Layout

Known planets

1 planets linked to this host

HD 208897 b

Radial Velocity

◌

Discovery

2017

Period

358.3 days

Radius

—

Mass

379.5 M⊕

Eq. Temp

—

HD 208897 and Its Planet

HD 208897 is a K0 star 220 light-years from Earth, with one known planet in orbit. Its spectral type places it in the cooler K class, and the star's reported mass estimate is 1.25 solar masses, larger than the Sun's. Its radius is 4.98 solar radii, also larger than the Sun's, while its temperature of 4860 K is cooler than the Sun's.

The planet HD 208897 b was discovered in 2017 using the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion; repeated wobbles reveal the planet and its orbital period. HD 208897 b has a minimum mass of 379 Earth masses, a lower bound on its true mass that is larger than Earth's and roughly 1.19 times Jupiter's mass. It completes one orbit in 358 days.

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

Luminositydisputed

2 values • 2 distinct

Surface Gravitystable

1 values • 1 distinct

Metallicitydisputed

2 values • 2 distinct

Spectral Typestable

2 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
48601.254.98—1.09K067.49Yılmaz et al. 2017TICv8
4897.9—4.86———67.49TICv8TICv8
—————K067.49Cannon & Pickering 1918TICv8
4935.4—4.79—1.09—67.49Gaia DR2TICv8