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Stellar HostProfile

K2-253

Unclassified star • 876.6 pc

Records

4

literature rows

Planets

1

system count

References

5

distinct source labels

TIC: TIC 98669309

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

6027 K

5227.9 to 6027

4 values • 3 distinct

Mass

1.08 Msun

0.92 to 1.08

2 values • 2 distinct

Radius

1.10 Rsun

1.08 to 1.12

4 values • 3 distinct

Distance

876.6 pc

single adopted value

4 values • 1 distinct

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 1.10 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

K2-253

1.10 R☉

System Layout

Known planets

1 planets linked to this host

K2-253 b

Transit

◌

Discovery

2018

Period

4.00 days

Radius

12.67 R⊕

Mass

—

Eq. Temp

1238 K

K2-253: A Distant Star With a Giant Planet

K2-253 is a star located 2860 light-years away, and it hosts one planet. The star has a mass of 1.08 solar masses, a radius of 1.1 solar radii, and a temperature of 6030 K. Its radius is larger than the Sun's, and its temperature is hotter than the Sun's.

The planet K2-253 b is a Jupiter-like world, a size class that describes a radius exceeding four times Earth's. It was discovered 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. K2-253 b orbits its star every 4 days. Its radius is 12.7 Earth radii, which is larger than Earth's.

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

4 values • 3 distinct

Massdisputed

2 values • 2 distinct

Radiusdisputed

4 values • 3 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

3 values • 2 distinct

Metallicitystable

1 values • 1 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
60271.081.10———876.6Livingston et al. 2018TICv8
5227.9—1.12—-0.08—876.6Gaia DR2TICv8
5318—1.08———876.6ExoFOPTICv8
53180.921.08—-0.07—876.6TICv8TICv8