Stellar HostProfile

K2-404

M1 • 121.6 pc

Records

literature rows

Planets

system count

References

distinct source labels

TIC: TIC 61312205

Approximate color

from effective temperature

Stellar source: Zink et al. 2021 • System source: TICv8

Temperature

3748 K

3748 to 3802

3 values • 2 distinct

Mass

0.55 Msun

0.55 to 0.55

3 values • 2 distinct

Radius

0.55 Rsun

0.55 to 0.55

3 values • 2 distinct

Distance

121.6 pc

single adopted value

3 values • 1 distinct

Spectral Type

Consistent across records

M1 (1)

Planets

Stable across source rows

Sun

1.0 R☉ baseline

K2-404

0.55 R☉

Discovery

2022

Period

13.12 days

Radius

2.53 R⊕

Mass

—

Eq. Temp

—

K2-404 and Its Neptune-Like Planet

K2-404 is a single-star system 397 light-years away. Its host is an M1 star with a mass of 0.552 solar masses and a radius of 0.552 solar radii, and a temperature of 3750 K. Its reported mass and radius estimates are smaller than the Sun's, and its reported temperature is cooler than the Sun's.

One planet orbits this star. K2-404 b is a Neptune-like world discovered by transit in 2022. It completes an orbit every 13.1 days and has a radius of 2.53 Earth radii, larger than Earth's.

Evidence Summary

Rows

Stellar refs

System refs

Distancestable

3 values • 1 distinct

Parallaxstable

3 values • 1 distinct

Temperaturedisputed

3 values • 2 distinct

Massdisputed

3 values • 2 distinct

Radiusdisputed

3 values • 2 distinct

Luminositystable

1 values • 1 distinct

Surface Gravitydisputed

3 values • 2 distinct

Metallicitystable

2 values • 1 distinct

Spectral Typestable

1 values • 1 distinct

ST TEFF	ST MASS	ST RAD	ST AGE	ST LUM	ST SPECTYPE	SY DIST	Stellar Ref	System Ref
3748	0.55	0.55	—	—	—	121.6	Christiansen et al. 2022	TICv8
3802	0.55	0.55	—	-1.24	—	121.6	TICv8	TICv8
3748	0.55	0.55	—	—	M1	121.6	Zink et al. 2021	TICv8

K2-404

Adopted host values from one source row

Radius against the Sun

Known planets

K2-404 b

K2-404 and Its Neptune-Like Planet

Underlying measurements and references