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Stellar HostProfile

K2-206

Unclassified star • 244.4 pc

Records

3

literature rows

Planets

1

system count

References

4

distinct source labels

TIC: TIC 257392778

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: Mayo et al. 2018 • System source: TICv8

Temperature

5043 K

5014.2 to 5066

3 values • 3 distinct

Mass

0.79 Msun

0.79 to 0.85

2 values • 2 distinct

Radius

0.76 Rsun

0.76 to 0.80

3 values • 3 distinct

Distance

244.4 pc

single adopted value

3 values • 1 distinct

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 0.76 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

K2-206

0.76 R☉

System Layout

Known planets

1 planets linked to this host

K2-206 b

Transit

◌

Discovery

2018

Period

18.29 days

Radius

2.80 R⊕

Mass

—

Eq. Temp

—

K2-206 b: A Neptune-Like World Around a Cooler Star

K2-206 is a star 797 light-years away with one known planet. The star has a reported mass estimate of 0.789 solar masses, a reported radius estimate of 0.758 solar radii, and a reported temperature of 5040 K. Its mass and radius are smaller than the Sun's, and its temperature is cooler than the Sun's.

The planet, K2-206 b, is Neptune-like and was discovered by transit in 2018. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness; repeated dips help establish orbital periods. K2-206 b orbits every 18.3 days and has a radius of 2.8 Earth radii, which is larger than Earth's.

Provenance

Underlying measurements and references

Evidence Summary

Rows

3

Stellar refs

3

System refs

1

Distancestable

3 values • 1 distinct

Parallaxstable

3 values • 1 distinct

Temperaturedisputed

3 values • 3 distinct

Massdisputed

2 values • 2 distinct

Radiusdisputed

3 values • 3 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

2 values • 2 distinct

Metallicitystable

1 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
50430.790.76———244.4Mayo et al. 2018TICv8
50660.850.79—-0.43—244.4TICv8TICv8
5014.2—0.80—-0.44—244.4Gaia DR2TICv8