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Stellar HostProfile

K2-252

Unclassified star • 228.8 pc

Records

3

literature rows

Planets

1

system count

References

4

distinct source labels

TIC: TIC 152868838

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: Livingston et al. 2018 • System source: TICv8

Temperature

5152 K

5000.4 to 5152

3 values • 3 distinct

Mass

0.79 Msun

0.79 to 0.83

2 values • 2 distinct

Radius

0.82 Rsun

0.82 to 0.83

3 values • 3 distinct

Distance

228.8 pc

single adopted value

3 values • 1 distinct

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 0.82 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

K2-252

0.82 R☉

System Layout

Known planets

1 planets linked to this host

K2-252 b

Transit

◌

Discovery

2018

Period

13.82 days

Radius

1.74 R⊕

Mass

—

Eq. Temp

639 K

K2-252 b: A Super-Earth in a Close Orbit

K2-252 is a star located 746 light-years away. It has 0.79 solar masses, 0.82 solar radii, and a temperature of 5150 K. Its mass and radius are smaller than the Sun's, and it is cooler than the Sun. One planet is known to orbit this star.

That planet, K2-252 b, is classified as a Super-Earth and was discovered in 2018 by the transit method, in which a planet passes in front of its star from our viewpoint and causes a small dip in observed brightness. Repeated dips help establish orbital periods. K2-252 b completes one orbit every 13.8 days. Its radius is 1.74 Earth radii, which is larger than Earth's.

A Super-Earth's size class reaches 2.5 times Earth's radius, and radius comparisons describe size rather than composition.

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
5000.4—0.83—-0.41—228.8Gaia DR2TICv8
51520.790.82———228.8Livingston et al. 2018TICv8
50200.830.83—-0.40—228.8TICv8TICv8