Stellar HostProfile

K2-217

Unclassified star • 381.9 pc

Records

literature rows

Planets

system count

References

distinct source labels

TIC: TIC 405333767

Approximate color

from effective temperature

Stellar source: Mayo et al. 2018 • System source: TICv8

Temperature

5967 K

5837 to 6004

3 values • 3 distinct

Mass

1.10 Msun

1.10 to 1.11

2 values • 2 distinct

Radius

1.33 Rsun

1.26 to 1.33

4 values • 4 distinct

Distance

381.9 pc

single adopted value

4 values • 1 distinct

Planets

Stable across source rows

Sun

1.0 R☉ baseline

K2-217

1.33 R☉

Discovery

2018

Period

14.07 days

Radius

3.58 R⊕

Mass

—

Eq. Temp

—

K2-217 and Its Neptune-Like Planet

K2-217 is a star 1250 light-years away with one known planet. The star has a mass of 1.1 solar masses and a radius of 1.33 solar radii, both larger than the Sun's, and a temperature of 5970 K, hotter than the Sun.

The planet K2-217 b is Neptune-like. It was discovered by transit in 2018, when it passed in front of its star from our viewpoint and caused a small dip in observed brightness. Its orbital period is 14.1 days and its radius is 3.58 Earth radii, larger than Earth's.

Evidence Summary

Rows

Stellar refs

System refs

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 TEFF	ST MASS	ST RAD	ST AGE	ST LUM	ST SPECTYPE	SY DIST	Stellar Ref	System Ref
—	—	1.28	—	—	—	381.9	Kruse et al. 2019	TICv8
5837	—	1.28	—	0.23	—	381.9	Gaia DR2	TICv8
6004	1.11	1.26	—	0.27	—	381.9	TICv8	TICv8
5967	1.10	1.33	—	—	—	381.9	Mayo et al. 2018	TICv8

K2-217

Adopted host values from one source row

Radius against the Sun

Known planets

K2-217 b

K2-217 and Its Neptune-Like Planet

Underlying measurements and references