Temperature
4900 K
4800 to 4980
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Stellar HostProfile
WASP-11
K3 V • 124.7 pc
Records
11
literature rows
Planets
1
system count
References
12
distinct source labels
TIC: TIC 85593751
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: Mancini et al. 2015 • System source: TICv8
Mass
0.81 Msun
0.77 to 1.42
Radius
0.77 Rsun
0.74 to 0.90
Age
7.60 Gyr
single adopted value
Distance
124.7 pc
single adopted value
Spectral Type
K3 V
Consistent across records
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.77 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
WASP-11
0.77 R☉
System Layout
Known planets
1 planets linked to this host
WASP-11 b
Transit
◌
Discovery
2008
Period
3.72 days
Radius
12.44 R⊕
Mass
251.1 M⊕
Eq. Temp
—
WASP-11 b: A Giant Planet Around a Cool Dwarf
WASP-11 is a K-type main-sequence star located 407 light-years away. It is cooler than the Sun at 4900 K and has a mass of 0.806 solar masses with a radius of 0.772 solar radii. The star is estimated to be 7.6 billion years old. One planet is known to orbit this host.
That planet, WASP-11 b, was discovered in 2008 by the transit method, in which a planet passes in front of its star from our viewpoint and causes a small dip in observed brightness. It orbits every 3.72 days. The planet has a mass of 251 Earth masses and a radius of 12.4 Earth radii, which places it in the Jupiter-like class of planets exceeding four times Earth's radius. Its mean density is 0.718 g/cm³, 0.13 times Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
11
Stellar refs
11
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 4900 | 0.81 | 0.77 | 7.60 | — | K3 V | 124.7 | Mancini et al. 2015 | TICv8 |
| 4800 | 0.77 | 0.74 | — | 0 | — | 124.7 | West et al. 2009 | TICv8 |
| 4800 | 1.42 | 0.89 | — | — | — | 124.7 | Stassun et al. 2017 | TICv8 |
| 4980 | — | — | — | — | — | 124.7 | Yalçınkaya et al. 2024 | TICv8 |
| 4926 | — | 0.82 | — | — | — | 124.7 | ExoFOP | TICv8 |
| 4926 | 0.81 | 0.82 | — | -0.45 | — | 124.7 | TICv8 | TICv8 |
| 4980 | 0.83 | 0.79 | — | -0.47 | — | 124.7 | Bakos et al. 2009 | TICv8 |
| — | 0.83 | — | — | — | — | 124.7 | Knutson et al. 2014 | TICv8 |
| 4881 | 0.77 | 0.90 | — | — | — | 124.7 | Mortier et al. 2013 | TICv8 |
| 4833.6 | — | 0.81 | — | -0.49 | — | 124.7 | Gaia DR2 | TICv8 |
| 4900 | 0.81 | 0.77 | 7.60 | — | — | 124.7 | Bonomo et al. 2017 | TICv8 |