Temperature
5222 K
4950.2 to 5392
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Stellar HostProfile
K2-29
K1 V • 178.5 pc
Records
9
literature rows
Planets
1
system count
References
10
distinct source labels
TIC: TIC 56399553
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: Johnson et al. 2016 • System source: TICv8
Mass
0.86 Msun
0.86 to 0.94
Radius
0.75 Rsun
0.75 to 0.86
Age
2.60 Gyr
single adopted value
Luminosity
-0.43 log(Lsun)
-0.45 to -0.30
Distance
178.5 pc
single adopted value
Spectral Type
K1 V
Multiple classifications reported
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.75 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-29
0.75 R☉
System Layout
Known planets
1 planets linked to this host
K2-29 b
Transit
◌
Discovery
2016
Period
3.26 days
Radius
13.34 R⊕
Mass
232.0 M⊕
Eq. Temp
1171 K
K2-29 b: A Closely Orbiting Giant Around a Cool Dwarf
K2-29 is a K1 V star 582 light-years away. The K-type dwarf is cooler and less massive and smaller than the Sun, with a temperature of 5220 K, a mass of 0.864 solar masses, and a radius of 0.748 solar radii. It is 2.6 billion years old. One planet is known to orbit this host.
That planet, K2-29 b, was discovered in 2016 by the transit method, in which a planet passes in front of its star and causes a small dip in observed brightness. Its orbit is tight, taking 3.26 days to complete. The planet is a Jupiter-like world, with a radius of 13.3 Earth radii and a mass of 232 Earth masses. K2-29 b is larger and more massive than Earth, and its mean density is 0.539 g/cm³, 0.0978 times Earth's.
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 |
|---|---|---|---|---|---|---|---|---|
| 5358 | 0.94 | 0.86 | 2.60 | — | G7 V | 178.5 | Santerne et al. 2016 | TICv8 |
| 5392 | 0.92 | 0.86 | — | — | — | 178.5 | Mayo et al. 2018 | TICv8 |
| — | — | — | — | — | — | 178.5 | Barros et al. 2016 | TICv8 |
| 5323 | 0.94 | 0.85 | — | — | — | 178.5 | Crossfield et al. 2016 | TICv8 |
| 5222 | 0.86 | 0.75 | 2.60 | -0.43 | K1 V | 178.5 | Johnson et al. 2016 | TICv8 |
| 5387.1 | — | 0.82 | — | — | — | 178.5 | ExoFOP | TICv8 |
| — | — | 0.81 | — | — | — | 178.5 | Kruse et al. 2019 | TICv8 |
| 4950.2 | — | 0.81 | — | -0.45 | — | 178.5 | Gaia DR2 | TICv8 |
| 5387.1 | 0.94 | 0.82 | — | -0.30 | — | 178.5 | TICv8 | TICv8 |