Temperature
4650 K
4559 to 4869.3
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Stellar HostProfile
HAT-P-12
K4 • 142.8 pc
Records
10
literature rows
Planets
1
system count
References
11
distinct source labels
TIC: TIC 198108326
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: Hartman et al. 2009 • System source: TICv8
Mass
0.73 Msun
0.69 to 0.74
Radius
0.70 Rsun
0.61 to 0.70
Age
2.50 Gyr
2.50 to 7.20
Luminosity
-0.68 log(Lsun)
-0.73 to -0.68
Distance
142.8 pc
single adopted value
Spectral Type
K4
Consistent across records
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.70 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HAT-P-12
0.70 R☉
System Layout
Known planets
1 planets linked to this host
HAT-P-12 b
Transit
◌
Discovery
2009
Period
3.21 days
Radius
10.75 R⊕
Mass
67.06 M⊕
Eq. Temp
963 K
HAT-P-12 and Its Jupiter-Like Planet
HAT-P-12 is a K4 star 466 light-years away. Its mass is 0.733 solar masses, its radius is 0.701 solar radii, and its temperature is 4650 K, making it cooler, smaller, and less massive than the Sun. It is 2.5 billion years old, and one planet orbits it.
That planet is HAT-P-12 b, a Jupiter-like world discovered by transit in 2009. It has a mass of 67.1 Earth masses and a radius of 10.7 Earth radii, both larger than Earth's. Its orbital period is 3.21 days, and its mean density is 0.298 g/cm³, 0.054 times Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
10
Stellar refs
10
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 4652.9 | 0.74 | 0.70 | — | -0.68 | — | 142.8 | TICv8 | TICv8 |
| 4559 | 0.73 | 0.70 | 2.50 | -0.68 | K4 | 142.8 | Ment et al. 2018 | TICv8 |
| 4650 | 0.73 | 0.70 | — | — | — | 142.8 | Öztürk & Erdem 2019 | TICv8 |
| 4650 | 0.73 | 0.70 | 2.50 | -0.68 | K4 | 142.8 | Hartman et al. 2009 | TICv8 |
| — | 0.73 | — | — | — | — | 142.8 | Knutson et al. 2014 | TICv8 |
| 4650 | — | — | — | — | — | 142.8 | Sada & Ramón-Fox 2016 | TICv8 |
| 4665 | 0.69 | 0.68 | 7.20 | — | — | 142.8 | Mancini et al. 2018 | TICv8 |
| 4652.9 | — | 0.70 | — | — | — | 142.8 | ExoFOP | TICv8 |
| 4650 | 0.73 | 0.70 | 2.50 | — | — | 142.8 | Bonomo et al. 2017 | TICv8 |
| 4869.3 | — | 0.61 | — | -0.73 | — | 142.8 | Gaia DR2 | TICv8 |