Discovery Method
Transit
Consistent across records
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ExoplanetDetail
TOI-1221 b
Host star TOI-1221 • 2.91 R⊕ • 91.68 d orbit
Records
2
archive rows
Discovery
2023
Transit
Radius
2.91 R⊕
default parameter set
Mass
1112.4 M⊕
default parameter set
TOI-1221
440 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: Mann et al. 2023
Host Star
TOI-1221
Stable across source rows
Discovery Year
2023
Stable across source rows
Orbital Period
91.68 day
91.68 to 91.68
Semi-Major Axis
0.39 au
single adopted value
Radius
2.91 Rearth
2.91 to 3.24
Mass
1112.4 Mearth
single adopted value
Equilibrium Temperature
440 K
399.1 to 440
Scale Comparison
Radius against familiar reference worlds
Current adopted radius: 2.91 R⊕ • circles scaled linearly by radius
Earth
1.0 R⊕ baseline
TOI-1221 b
2.91 R⊕
Jupiter
11.2 R⊕ reference
Provenance
Underlying measurements and references
Evidence Summary
Rows
2
Refs
2
Methods
1
Discoverystable
Facilitystable
Periodstable
Radiusdisputed
Massstable
Eq. Tempdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2023 | Transit | Transiting Exoplanet Survey Satellite (TESS) | 0.1 m TESS Telescope | 91.68 day | 3.24 Rearth | — | 399.1 K | ExoFOP |
| 2023 | Transit | Transiting Exoplanet Survey Satellite (TESS) | 0.1 m TESS Telescope | 91.68 day | 2.91 Rearth | 1112.4 Mearth | 440 K | Mann et al. 2023 |