Temperature
4841 K
4707 to 4841
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Stellar HostProfile
xi Aql
K0 III • 56.19 pc
Records
9
literature rows
Planets
1
system count
References
10
distinct source labels
HD: HD 188310TIC: TIC 375464367HIP: HIP 97938
Approximate color
from effective temperature
Canonical Summary
Adopted host values from one source row
Values come from the row with the most populated summary measurements. Missing values stay missing. Ranges and counts describe all source rows.
Stellar source: Teng et al. 2023 • System source: TICv8
Mass
1.74 Msun
1 to 2.20
Radius
10.86 Rsun
9.81 to 12
Luminosity
1.77 log(Lsun)
1.71 to 1.84
Distance
56.19 pc
single adopted value
Spectral Type
K0 III
Multiple classifications reported
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 10.86 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
xi Aql
10.86 R☉
System Layout
Known planets
1 planets linked to this host
xi Aql b
Radial Velocity
◌
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.
Provenance
Underlying measurements and references
Evidence Summary
Rows
9
Stellar refs
9
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typedisputed
| 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 |