Discovery Method
Transit
Consistent across records
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ExoplanetDetail
Kepler-1991 c
Host star Kepler-1991 • 2.57 R⊕ • 22.79 d orbit
Records
9
archive rows
Discovery
2023
Transit
Radius
2.57 R⊕
default parameter set
Mass
—
default parameter set
Kepler-1991
634 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: Q1-Q17 DR25 KOI Table
Host Star
Kepler-1991
Stable across source rows
Discovery Year
2023
Stable across source rows
Orbital Period
22.79 day
22.79 to 22.79
Semi-Major Axis
0.15 au
0.15 to 0.15
Radius
2.57 Rearth
2.02 to 2.91
Equilibrium Temperature
634 K
571 to 634
Scale Comparison
Radius against familiar reference worlds
Current adopted radius: 2.57 R⊕ • circles scaled linearly by radius
Earth
1.0 R⊕ baseline
Kepler-1991 c
2.57 R⊕
Jupiter
11.2 R⊕ reference
Provenance
Underlying measurements and references
Evidence Summary
Rows
9
Refs
9
Methods
1
Discoverystable
Facilitystable
Periodstable
Radiusdisputed
Eq. Tempdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2023 | Transit | Kepler | 0.95 m Kepler Telescope | 22.79 day | — | — | — | Q1-Q17 DR25 Supplemental KOI Table |
| 2023 | Transit | Kepler | 0.95 m Kepler Telescope | 22.79 day | 2.57 Rearth | — | 634 K | Q1-Q17 DR25 KOI Table |
| 2023 | Transit | Kepler | 0.95 m Kepler Telescope | 22.79 day | 2.18 Rearth | — | 584 K | Q1-Q17 DR24 KOI Table |
| 2023 | Transit | Kepler | 0.95 m Kepler Telescope | 22.79 day | 2.91 Rearth | — | — | Valizadegan et al. 2023 |
| 2023 | Transit | Kepler | 0.95 m Kepler Telescope | 22.79 day | 2.45 Rearth | — | — | Fulton & Petigura 2018 |
| 2023 | Transit | Kepler | 0.95 m Kepler Telescope | 22.79 day | 2.18 Rearth | — | 584 K | Q1-Q16 KOI Table |
| 2023 | Transit | Kepler | 0.95 m Kepler Telescope | 22.79 day | 2.02 Rearth | — | 571 K | Q1-Q8 KOI Table |
| 2023 | Transit | Kepler | 0.95 m Kepler Telescope | 22.79 day | — | — | — | Holczer et al. 2016 |
| 2023 | Transit | Kepler | 0.95 m Kepler Telescope | 22.79 day | 2.18 Rearth | — | 584 K | Q1-Q12 KOI Table |