Stellar HostProfile

HD 190228

G5 IV • 62.71 pc

Records

literature rows

Planets

system count

References

distinct source labels

HD: HD 190228HIP: HIP 98714TIC: TIC 117905020

Approximate color

from effective temperature

Stellar source: Xiao et al. 2023 • System source: TICv8

Temperature

5360 K

5238 to 5360

2 values • 2 distinct

Mass

1.22 Msun

1.22 to 1.42

2 values • 2 distinct

Distance

62.71 pc

single adopted value

3 values • 1 distinct

Spectral Type

G5 IV

Consistent across records

G5 IV (1)

Planets

Stable across source rows

Discovery

2022

Period

1143.6 days

Radius

—

Mass

1598.7 M⊕

Eq. Temp

—

HD 190228 and Its Single Known Planet

HD 190228 is a G5 IV star located 205 light-years away, with a reported mass of 1.22 solar masses and a temperature of 5360 K. Its mass estimate is larger than the Sun's, while its temperature is cooler than the Sun's. One planet has been found in orbit around it.

That planet, HD 190228 b, was discovered in 2022 using the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion. It has a reported mass of 1600 Earth masses, roughly 5.03 times Jupiter's mass, and completes an orbit in 1140 days. Its reported mass is larger than Earth's.

Evidence Summary

Rows

Stellar refs

System refs

Distancestable

3 values • 1 distinct

Parallaxstable

3 values • 1 distinct

Temperaturedisputed

2 values • 2 distinct

Massdisputed

2 values • 2 distinct

Radiusstable

1 values • 1 distinct

Surface Gravitystable

1 values • 1 distinct

Metallicitydisputed

2 values • 2 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
5238	—	2.59	—	—	—	62.71	TICv8	TICv8
—	1.42	—	—	—	—	62.71	Feng et al. 2022	TICv8
5360	1.22	—	—	—	G5 IV	62.71	Xiao et al. 2023	TICv8

HD 190228

Adopted host values from one source row

Known planets

HD 190228 b

HD 190228 and Its Single Known Planet

Underlying measurements and references