Stellar HostProfile

HIP 90988

K1 III • 94.03 pc

Records

literature rows

Planets

system count

References

distinct source labels

TIC: TIC 404598466HIP: HIP 90988HD: HD 170707

Approximate color

from effective temperature

Stellar source: Jenkins et al. 2025 • System source: TICv8

Temperature

4884 K

4833 to 4884

3 values • 3 distinct

Mass

1.30 Msun

1.30 to 1.61

3 values • 2 distinct

Radius

3.94 Rsun

3.94 to 3.98

3 values • 2 distinct

Age

4.55 Gyr

single adopted value

2 values • 1 distinct

Luminosity

0.89 log(Lsun)

0.89 to 0.89

2 values • 2 distinct

Distance

94.03 pc

single adopted value

4 values • 1 distinct

Spectral Type

K1 III

Consistent across records

K1 III (2)

Planets

Stable across source rows

Sun

1.0 R☉ baseline

HIP 90988

3.94 R☉

Discovery

2021

Period

455.7 days

Radius

—

Mass

668.1 M⊕

Eq. Temp

—

HIP 90988 b: A Massive Planet Orbiting a Cool Giant

HIP 90988 is a K1 III star located 307 light-years away. The star has a measured age of 4.55 billion years, a mass of 1.3 solar masses, and a radius of 3.94 solar radii, with a temperature of 4880 K. Its reported mass and radius estimates are larger than the Sun's, while its reported temperature is cooler.

One planet is known to orbit this host. HIP 90988 b was discovered in 2021 by the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion. The planet has a minimum mass of 668 Earth masses and an orbital period of 456 days. Its minimum mass is larger than Earth's and roughly 2.1 times Jupiter's mass.

Evidence Summary

Rows

Stellar refs

System refs

Distancestable

4 values • 1 distinct

Parallaxstable

4 values • 1 distinct

Temperaturedisputed

3 values • 3 distinct

Massdisputed

3 values • 2 distinct

Radiusdisputed

3 values • 2 distinct

Agestable

2 values • 1 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitystable

2 values • 1 distinct

Metallicitystable

2 values • 1 distinct

Spectral Typestable

2 values • 1 distinct

ST TEFF	ST MASS	ST RAD	ST AGE	ST LUM	ST SPECTYPE	SY DIST	Stellar Ref	System Ref
4884	1.30	3.94	4.55	0.89	K1 III	94.03	Jenkins et al. 2025	TICv8
4883	1.30	3.94	4.55	0.89	K1 III	94.03	Jones et al. 2021	TICv8
4833	—	3.98	—	—	—	94.03	TICv8	TICv8
—	1.61	—	—	—	—	94.03	Feng et al. 2022	TICv8

HIP 90988

Adopted host values from one source row

Radius against the Sun

Known planets

HIP 90988 b

HIP 90988 b: A Massive Planet Orbiting a Cool Giant

Underlying measurements and references