Discovery Method
Transit
Consistent across records
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ExoplanetDetail
Kepler-138 d
Host star Kepler-138 • 1.51 R⊕ • 23.09 d orbit
Records
17
archive rows
Discovery
2014
Transit
Radius
1.51 R⊕
default parameter set
Mass
2.10 M⊕
default parameter set
Kepler-138
345 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: Piaulet et al. 2023
Host Star
Kepler-138
Stable across source rows
Discovery Year
2014
Stable across source rows
Orbital Period
23.09 day
23.09 to 23.09
Semi-Major Axis
0.13 au
0.13 to 0.13
Radius
1.51 Rearth
1.20 to 2.06
Mass
2.10 Mearth
0.64 to 2.10
Density
3.60 g/cm**3
1.31 to 3.60
Equilibrium Temperature
345 K
335 to 376
Scale Comparison
Radius against familiar reference worlds
Current adopted radius: 1.51 R⊕ • circles scaled linearly by radius
Earth
1.0 R⊕ baseline
Kepler-138 d
1.51 R⊕
Jupiter
11.2 R⊕ reference
Provenance
Underlying measurements and references
Evidence Summary
Rows
17
Refs
17
Methods
1
Discoverystable
Facilitystable
Periodstable
Radiusdisputed
Massdisputed
Eq. Tempdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2014 | Transit | Kepler | 0.95 m Kepler Telescope | — | 1.86 Rearth | — | — | Mann et al. 2013 |
| 2014 | Transit | Kepler | 0.95 m Kepler Telescope | 23.09 day | 1.68 Rearth | 1.17 Mearth | — | Almenara et al. 2018 |
| 2014 | Transit | Kepler | 0.95 m Kepler Telescope | 23.09 day | 1.26 Rearth | — | 335 K | Muirhead et al. 2012 |
| 2014 | Transit | Kepler | 0.95 m Kepler Telescope | 23.09 day | 1.33 Rearth | — | — | Gaidos et al. 2024 |
| 2014 | Transit | Kepler | 0.95 m Kepler Telescope | 23.09 day | 1.21 Rearth | 0.64 Mearth | — | Jontof-Hutter et al. 2015 |
| 2014 | Transit | Kepler | 0.95 m Kepler Telescope | 23.09 day | — | — | — | Holczer et al. 2016 |
| 2014 | Transit | Kepler | 0.95 m Kepler Telescope | 23.09 day | 1.52 Rearth | — | 335 K | Q1-Q17 DR24 KOI Table |
| 2014 | Transit | Kepler | 0.95 m Kepler Telescope | 23.09 day | 1.63 Rearth | — | — | Morton et al. 2016 |
| 2014 | Transit | Kepler | 0.95 m Kepler Telescope | 23.09 day | 1.61 Rearth | 1.01 Mearth | — | Kipping et al. 2014 |
| 2014 | Transit | Kepler | 0.95 m Kepler Telescope | 23.09 day | — | — | — | Q1-Q17 DR25 Supplemental KOI Table |
| 2014 | Transit | Kepler | 0.95 m Kepler Telescope | 23.09 day | 1.20 Rearth | — | — | Mann et al. 2017 |
| 2014 | Transit | Kepler | 0.95 m Kepler Telescope | 23.09 day | 1.51 Rearth | 2.10 Mearth | 345 K | Piaulet et al. 2023 |
| 2014 | Transit | Kepler | 0.95 m Kepler Telescope | 23.09 day | 1.24 Rearth | — | 338 K | Q1-Q17 DR25 KOI Table |
| 2014 | Transit | Kepler | 0.95 m Kepler Telescope | 23.09 day | 1.52 Rearth | — | 335 K | Q1-Q12 KOI Table |
| 2014 | Transit | Kepler | 0.95 m Kepler Telescope | — | 1.32 Rearth | — | — | Berger et al. 2018 |
| 2014 | Transit | Kepler | 0.95 m Kepler Telescope | 23.09 day | 1.52 Rearth | — | 335 K | Q1-Q16 KOI Table |
| 2014 | Transit | Kepler | 0.95 m Kepler Telescope | 23.09 day | 2.06 Rearth | — | 376 K | Q1-Q8 KOI Table |