Discovery Method
Transit
Consistent across records
←Back to Exoplanets
ExoplanetDetail
K2-261 b
Host star K2-261 • 9.27 R⊕ • 11.63 d orbit
Records
10
archive rows
Discovery
2018
Transit
Radius
9.27 R⊕
default parameter set
Mass
68.97 M⊕
default parameter set
K2-261
1036 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: Thygesen et al. 2023
Host Star
K2-261
Stable across source rows
Discovery Year
2018
Stable across source rows
Orbital Period
11.63 day
11.63 to 11.63
Semi-Major Axis
0.11 au
0.10 to 0.11
Radius
9.27 Rearth
9.27 to 10.32
Mass
68.97 Mearth
56 to 70.88
Density
0.47 g/cm**3
0.34 to 0.48
Equilibrium Temperature
1036 K
935 to 1080
Scale Comparison
Radius against familiar reference worlds
Current adopted radius: 9.27 R⊕ • circles scaled linearly by radius
Earth
1.0 R⊕ baseline
K2-261 b
9.27 R⊕
Jupiter
11.2 R⊕ reference
Provenance
Underlying measurements and references
Evidence Summary
Rows
10
Refs
9
Methods
1
Discoverystable
Facilitystable
Periodstable
Radiusdisputed
Massdisputed
Eq. Tempdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2018 | Transit | K2 | 0.95 m Kepler Telescope | 11.63 day | — | — | — | Patel & Espinoza 2022 |
| 2018 | Transit | K2 | 0.95 m Kepler Telescope | 11.63 day | 10.32 Rearth | 56 Mearth | 973 K | Howard et al. 2025 |
| 2018 | Transit | K2 | 0.95 m Kepler Telescope | 11.63 day | 9.51 Rearth | 67.70 Mearth | 1030 K | Ikwut-Ukwa et al. 2020 |
| 2018 | Transit | K2 | 0.95 m Kepler Telescope | 11.63 day | 9.53 Rearth | 69.92 Mearth | — | Knudstrup et al. 2024 |
| 2018 | Transit | K2 | 0.95 m Kepler Telescope | 11.63 day | 10.26 Rearth | — | 935 K | ExoFOP |
| 2018 | Transit | K2 | 0.95 m Kepler Telescope | 11.63 day | 9.27 Rearth | 68.97 Mearth | 1036 K | Thygesen et al. 2023 |
| 2018 | Transit | K2 | 0.95 m Kepler Telescope | 11.63 day | 9.53 Rearth | 70.88 Mearth | 1080 K | Johnson et al. 2018 |
| 2018 | Transit | K2 | 0.95 m Kepler Telescope | 11.63 day | — | — | — | Kokori et al. 2023 |
| 2018 | Transit | K2 | 0.95 m Kepler Telescope | 11.63 day | 9.53 Rearth | 59.75 Mearth | 1046 K | Ikwut-Ukwa et al. 2020 |
| 2018 | Transit | K2 | 0.95 m Kepler Telescope | 11.63 day | — | — | — | Ivshina & Winn 2022 |