Stellar HostProfile

Kepler-1881

Unclassified star • 1057.2 pc

Records

literature rows

Planets

system count

References

distinct source labels

TIC: TIC 270615772

Approximate color

from effective temperature

Stellar source: TICv8 • System source: TICv8

Temperature

5156 K

5135 to 5418

10 values • 6 distinct

Mass

0.87 Msun

0.80 to 0.91

8 values • 5 distinct

Radius

0.88 Rsun

0.76 to 0.88

10 values • 7 distinct

Luminosity

-0.31 log(Lsun)

single adopted value

1 values • 1 distinct

Distance

1057.2 pc

single adopted value

11 values • 1 distinct

Planets

Stable across source rows

Sun

1.0 R☉ baseline

Kepler-1881

0.88 R☉

Discovery

2021

Period

159.4 days

Radius

2.98 R⊕

Mass

—

Eq. Temp

—

Kepler-1881 and Its Neptune-Like Planet

Kepler-1881 is a star 3,450 light-years away with 0.87 solar masses, 0.88 solar radii, and a temperature of 5160 K. Its mass, radius, and temperature are all reported as smaller or cooler than the Sun's. One known planet orbits this host.

That planet, Kepler-1881 b, is Neptune-like and was discovered by transit in 2021. 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. Kepler-1881 b completes an orbit every 159 days and has a radius of 2.98 Earth radii, larger than Earth's. In size-class terms, a Neptune-like planet can reach four times Earth's radius.

Evidence Summary

Rows

Stellar refs

System refs

Distancestable

11 values • 1 distinct

Parallaxstable

11 values • 1 distinct

Temperaturedisputed

10 values • 6 distinct

Massdisputed

8 values • 5 distinct

Radiusdisputed

10 values • 7 distinct

Agedisputed

2 values • 2 distinct

Luminositystable

1 values • 1 distinct

Surface Gravitydisputed

9 values • 6 distinct

Metallicitydisputed

7 values • 5 distinct

ST TEFF	ST MASS	ST RAD	ST AGE	ST LUM	ST SPECTYPE	SY DIST	Stellar Ref	System Ref
5161	0.80	0.82	8.71	—	—	1057.2	Fulton & Petigura 2018	TICv8
—	—	—	—	—	—	1057.2	Q1-Q17 DR25 Supplemental KOI Table	TICv8
5365	0.86	0.76	0.90	—	—	1057.2	Q1-Q8 KOI Table	TICv8
5213	—	0.77	—	—	—	1057.2	Latham et al. 2005	TICv8
5213	—	0.77	—	—	—	1057.2	Q1-Q6 KOI Table	TICv8
5213	0.87	0.77	—	—	—	1057.2	Batalha et al. 2013	TICv8
5156	0.87	0.88	—	-0.31	—	1057.2	TICv8	TICv8
5418	0.91	0.81	—	—	—	1057.2	Q1-Q16 KOI Table	TICv8
5418	0.91	0.81	—	—	—	1057.2	Q1-Q17 DR24 KOI Table	TICv8
5135	0.81	0.87	—	—	—	1057.2	Q1-Q17 DR25 KOI Table	TICv8
5418	0.91	0.81	—	—	—	1057.2	Q1-Q12 KOI Table	TICv8

Kepler-1881

Adopted host values from one source row

Radius against the Sun

Known planets

Kepler-1881 b

Kepler-1881 and Its Neptune-Like Planet

Underlying measurements and references