Temperature
5350 K
5322 to 5429.6
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Stellar HostProfile
TOI-1173
G9 • 132.4 pc
Records
4
literature rows
Planets
1
system count
References
5
distinct source labels
TIC: TIC 232967440
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: Galarza et al. 2024 • System source: TICv8
Mass
0.91 Msun
0.91 to 0.94
Radius
0.93 Rsun
0.93 to 0.96
Age
8.70 Gyr
5.90 to 8.70
Distance
132.4 pc
single adopted value
Spectral Type
G9
Consistent across records
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.93 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
TOI-1173
0.93 R☉
System Layout
Known planets
1 planets linked to this host
TOI-1173 b
Transit
◌
Discovery
2024
Period
7.06 days
Radius
9.19 R⊕
Mass
27.40 M⊕
Eq. Temp
868 K
TOI-1173 b: A Jupiter-Like Planet Around a Sun-Like Star
TOI-1173 is a G9 star 432 light-years away, and it hosts one known planet. The star is estimated to be 8.7 billion years old, with a mass of 0.911 solar masses and a radius of 0.934 solar radii. Its temperature is 5350 K. The star's reported mass and radius estimates are smaller than the Sun's, and its reported temperature is cooler than the Sun's.
The planet, TOI-1173 b, was discovered in 2024 by the transit method. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. TOI-1173 b orbits its star every 7.06 days. It is classified as Jupiter-like, and its radius of 8.78 Earth radii is larger than Earth's. Its mass is 28.3 Earth masses, also larger than Earth's, and its mean density is 0.231 g/cm³, 0.0418 times Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
4
Stellar refs
4
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 |
|---|---|---|---|---|---|---|---|---|
| 5350 | 0.91 | 0.93 | 8.70 | — | G9 | 132.4 | Galarza et al. 2024 | TICv8 |
| 5429.6 | — | 0.96 | — | — | — | 132.4 | ExoFOP | TICv8 |
| 5322 | 0.92 | 0.96 | — | -0.18 | — | 132.4 | TICv8 | TICv8 |
| 5415 | 0.94 | 0.94 | 5.90 | -0.17 | — | 132.4 | MacDougall et al. 2023 | TICv8 |