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Stellar HostProfile

K2-201

Unclassified star • 197.9 pc

Records

4

literature rows

Planets

2

system count

References

5

distinct source labels

TIC: TIC 125060509

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

5507 K

5134 to 5507

3 values • 3 distinct

Mass

0.96 Msun

0.91 to 0.96

2 values • 2 distinct

Radius

0.88 Rsun

0.88 to 0.92

4 values • 4 distinct

Distance

197.9 pc

single adopted value

4 values • 1 distinct

Planets

2

Stable across source rows

2

Scale Comparison

Radius against the Sun

Current adopted radius: 0.88 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

K2-201

0.88 R☉

System Layout

Known planets

2 planets linked to this host

K2-201 b

Transit

◌

Discovery

2018

Period

1.06 days

Radius

1.40 R⊕

Mass

—

Eq. Temp

—

K2-201 c

Transit

◌

Discovery

2018

Period

22.78 days

Radius

3.29 R⊕

Mass

—

Eq. Temp

—

K2-201 and Its Two Known Planets

K2-201 is a star 646 light-years away with two known planets. The star has a reported mass of 0.956 solar masses and a radius of 0.878 solar radii. Its reported temperature is 5510 K.

Both planets were discovered by transit in 2018. K2-201 b is classified as Earth-like and orbits every 1.06 days at a radius of 1.4 Earth radii. K2-201 c is classified as Neptune-like and orbits every 22.8 days at a radius of 3.29 Earth radii. Among the listed planets, K2-201 b has the shortest year and smallest radius, while K2-201 c has the longest year and largest radius.

Provenance

Underlying measurements and references

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

Massdisputed

2 values • 2 distinct

Radiusdisputed

4 values • 4 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
5134—0.92—-0.28—197.9Gaia DR2TICv8
55070.960.88———197.9Mayo et al. 2018TICv8
——0.92———197.9Kruse et al. 2019TICv8
53100.910.88—-0.25—197.9TICv8TICv8