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Stellar HostProfile

K2-259

Unclassified star • 416.5 pc

Records

4

literature rows

Planets

1

system count

References

5

distinct source labels

TIC: TIC 377259959

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: TICv8 • System source: TICv8

Temperature

5962.2 K

5928 to 6059

4 values • 4 distinct

Mass

1.09 Msun

1.09 to 1.14

2 values • 2 distinct

Radius

1.15 Rsun

1.08 to 1.15

4 values • 4 distinct

Luminosity

0.18 log(Lsun)

0.17 to 0.18

2 values • 2 distinct

Distance

416.5 pc

single adopted value

4 values • 1 distinct

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 1.15 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

K2-259

1.15 R☉

System Layout

Known planets

1 planets linked to this host

K2-259 b

Transit

◌

Discovery

2018

Period

15.48 days

Radius

2.32 R⊕

Mass

—

Eq. Temp

795 K

K2-259 b: A Super-Earth Orbiting a Star

K2-259 is a star 1360 light-years away with one known planet. The star has a mass of 1.09 solar masses, a radius of 1.15 solar radii, and a temperature of 5960 K. Its mass is larger than the Sun's, its radius is larger than the Sun's, and its temperature is hotter than the Sun's.

The system hosts K2-259 b, a Super-Earth discovered by the transit method 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. K2-259 b orbits its star every 15.5 days and has a radius of 2.32 Earth radii, larger than Earth's. Its classification as a Super-Earth describes its radius rather than its composition.

Provenance

Underlying measurements and references

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Evidence Summary

Rows

4

Stellar refs

4

System refs

1

Distancestable

4 values • 1 distinct

Parallaxstable

4 values • 1 distinct

Temperaturedisputed

4 values • 4 distinct

Massdisputed

2 values • 2 distinct

Radiusdisputed

4 values • 4 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitydisputed

3 values • 3 distinct

Metallicitydisputed

3 values • 3 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
5962—1.14—0.17—416.5Gaia DR2TICv8
5928—1.08———416.5Mayo et al. 2018TICv8
5962.21.091.15—0.18—416.5TICv8TICv8
60591.141.13———416.5Livingston et al. 2018TICv8