Stellar HostProfile

xi Aql

K0 III • 56.19 pc

Records

literature rows

Planets

system count

References

distinct source labels

HD: HD 188310HIP: HIP 97938TIC: TIC 375464367

Approximate color

from effective temperature

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

Temperature

4841 K

4707 to 4841

6 values • 6 distinct

Mass

1.74 Msun

1 to 2.20

5 values • 5 distinct

Radius

10.86 Rsun

9.81 to 12

5 values • 5 distinct

Luminosity

1.77 log(Lsun)

1.71 to 1.84

3 values • 3 distinct

Distance

56.19 pc

single adopted value

9 values • 1 distinct

Spectral Type

K0 III

Multiple classifications reported

G9 III (1), K0 (1), K0 III (1)

Planets

Stable across source rows

Sun

1.0 R☉ baseline

xi Aql

10.86 R☉

Discovery

2007

Period

137.0 days

Radius

—

Mass

616.9 M⊕

Eq. Temp

—

Xi Aql and Its Planet

Xi Aql is a K0 III star 183 light-years away, with one known planet. Its mass estimate is 1.74 solar masses, its radius estimate is 10.9 solar radii, and its temperature is 4840 K. The star's reported mass and radius estimates are larger than the Sun's, while its reported temperature is cooler.

The planet is xi Aql b, discovered in 2007 by the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion. Its minimum mass is 617 Earth masses, a lower bound larger than Earth's and roughly 1.94 times Jupiter's mass. Its orbital period is 137 days.

Evidence Summary

Rows

Stellar refs

System refs

Distancestable

9 values • 1 distinct

Parallaxstable

9 values • 1 distinct

Temperaturedisputed

6 values • 6 distinct

Massdisputed

5 values • 5 distinct

Radiusdisputed

5 values • 5 distinct

Agestable

1 values • 1 distinct

Luminositydisputed

3 values • 3 distinct

Surface Gravitydisputed

3 values • 3 distinct

Metallicitydisputed

5 values • 4 distinct

Spectral Typedisputed

3 values • 3 distinct

ST TEFF	ST MASS	ST RAD	ST AGE	ST LUM	ST SPECTYPE	SY DIST	Stellar Ref	System Ref
4714	1.11	—	—	—	—	56.19	Mortier et al. 2013	TICv8
4805.2	—	9.81	—	—	—	56.19	TICv8	TICv8
4780	2.20	12	—	1.84	—	56.19	Sato et al. 2008	TICv8
4707	—	10.72	—	1.71	—	56.19	Gaia DR2	TICv8
4841	1.74	10.86	—	1.77	K0 III	56.19	Teng et al. 2023	TICv8
—	—	—	—	—	—	56.19	Duncan et al. 1991	TICv8
—	—	—	—	—	K0	56.19	Cannon & Pickering 1918	TICv8
—	1.40	—	—	—	—	56.19	Kunitomo et al. 2011	TICv8
4742	1	10	7.10	—	G9 III	56.19	Baines et al. 2009	TICv8

xi Aql

Adopted host values from one source row

Radius against the Sun

Known planets

xi Aql b

Xi Aql and Its Planet

Underlying measurements and references