Discovery Method
Transit
Consistent across records
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ExoplanetDetail
TOI-4666 b
Host star TOI-4666 • 12.53 R⊕ • 2.91 d orbit
Records
3
archive rows
Discovery
2025
Transit
Radius
12.53 R⊕
default parameter set
Mass
155.4 M⊕
default parameter set
TOI-4666
695 K equilibrium
Canonical Summary
Adopted planet values from the default parameter set
Values come from the archive's default parameter set. Missing values stay missing. Ranges and counts describe all source rows.
Selected source: Dransfield et al. 2026
Host Star
TOI-4666
Stable across source rows
Discovery Year
2025
Stable across source rows
Orbital Period
2.91 day
2.91 to 2.91
Semi-Major Axis
0.03 au
0.03 to 0.03
Radius
12.53 Rearth
12.44 to 12.87
Mass
155.4 Mearth
155.4 to 222.5
Density
0.43 g/cm**3
0.43 to 0.64
Equilibrium Temperature
695 K
695 to 729
Scale Comparison
Radius against familiar reference worlds
Current adopted radius: 12.53 R⊕ • circles scaled linearly by radius
Earth
1.0 R⊕ baseline
TOI-4666 b
12.53 R⊕
Jupiter
11.2 R⊕ reference
Provenance
Underlying measurements and references
Evidence Summary
Rows
3
Refs
3
Methods
1
Discoverystable
Facilitystable
Periodstable
Radiusdisputed
Massdisputed
Eq. Tempdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2025 | Transit | Transiting Exoplanet Survey Satellite (TESS) | 0.1 m TESS Telescope | 2.91 day | 12.53 Rearth | 155.4 Mearth | 695 K | Dransfield et al. 2026 |
| 2025 | Transit | Transiting Exoplanet Survey Satellite (TESS) | 0.1 m TESS Telescope | 2.91 day | 12.87 Rearth | — | 729 K | ExoFOP |
| 2025 | Transit | Transiting Exoplanet Survey Satellite (TESS) | 0.1 m TESS Telescope | 2.91 day | 12.44 Rearth | 222.5 Mearth | 713 K | Frensch et al. 2026 |