Discovery
Transit
Host star K2-138 • 2.81 R⊕ • 12.76 d orbit
Records
4
archive rows
Discovery
—
Transit
Radius
2.81 R⊕
median non-null value
Mass
2.05 M⊕
median non-null value
K2-138
653 K equilibrium
Quick Summary
This first pass still reads from the currently available detail payload. Canonical adopted summaries will replace first-row values in the next backend pass.
Scale Comparison
Current adopted radius: 2.81 R⊕ • circles scaled linearly by radius
Earth
1.0 R⊕ baseline
K2-138 f
2.81 R⊕
Jupiter
11.2 R⊕ reference
Provenance
Evidence Summary
Rows
4
Refs
4
Methods
1
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2017 | Transit | K2 | 0.95 m Kepler Telescope | 12.76 day | 2.73 Rearth | — | 653 K | Hardegree-Ullman et al. 2021 |
| 2017 | Transit | K2 | 0.95 m Kepler Telescope | 12.76 day | 2.81 Rearth | — | — | Christiansen et al. 2018 |
| 2017 | Transit | K2 | 0.95 m Kepler Telescope | 12.76 day | — | 2.47 Mearth | — | Vivien et al. 2024 |
| 2017 | Transit | K2 | 0.95 m Kepler Telescope | 12.76 day | 2.90 Rearth | 1.63 Mearth | — | Lopez et al. 2019 |