Temperature
6642.3 K
6446 to 6650.4
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Stellar HostProfile
HAT-P-33
Unclassified star • 396.1 pc
Records
9
literature rows
Planets
1
system count
References
10
distinct source labels
TIC: TIC 239154970
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: TICv8 • System source: TICv8
Mass
1.40 Msun
1.38 to 1.82
Radius
1.67 Rsun
1.61 to 1.91
Luminosity
0.69 log(Lsun)
0.62 to 0.69
Distance
396.1 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.67 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HAT-P-33
1.67 R☉
System Layout
Known planets
1 planets linked to this host
HAT-P-33 b
Transit
◌
Discovery
2011
Period
3.47 days
Radius
20.74 R⊕
Mass
292.4 M⊕
Eq. Temp
—
HAT-P-33 b: A Distant Jupiter-like World
HAT-P-33 is an F4 star located 1290 light-years away. Its reported mass is 1.4 solar masses, its radius is 1.67 solar radii, and its temperature is 6640 K. The star's mass and radius estimates are both larger than the Sun's, and its temperature is hotter than the Sun's. F4 places it in a hotter spectral class than the Sun's G-type.
One planet is known to orbit this host: HAT-P-33 b, discovered by the transit method in 2011. It is classified as Jupiter-like, meaning its radius exceeds 4 times Earth's radius. Its measured radius of 20.7 Earth radii is larger than Earth's, and its measured mass of 292 Earth masses is likewise larger than Earth's. Its mean density is 0.181 g/cm³, 0.0328 times Earth's. The planet completes an orbit in 3.47 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 Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 6446 | 1.82 | 1.79 | — | — | — | 396.1 | Stassun et al. 2017 | TICv8 |
| 6446 | 1.38 | 1.64 | — | 0.62 | — | 396.1 | Hartman et al. 2011 | TICv8 |
| 6446 | 1.38 | 1.64 | 2.30 | — | — | 396.1 | Bonomo et al. 2017 | TICv8 |
| — | — | — | — | — | F4 | 396.1 | Luo et al. 2018 | TICv8 |
| 6460 | — | 1.91 | 2.30 | — | F4 | 396.1 | Bourrier et al. 2023 | TICv8 |
| 6642.3 | — | 1.67 | — | — | — | 396.1 | ExoFOP | TICv8 |
| 6650.4 | — | 1.61 | — | 0.66 | — | 396.1 | Gaia DR2 | TICv8 |
| 6642.3 | 1.40 | 1.67 | — | 0.69 | — | 396.1 | TICv8 | TICv8 |
| — | 1.38 | — | — | — | — | 396.1 | Knutson et al. 2014 | TICv8 |