Discovery Method
Transit
Consistent across records
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ExoplanetDetail
Kepler-42 d
Host star Kepler-42 • 0.57 R⊕ • 1.87 d orbit
Records
13
archive rows
Discovery
2011
Transit
Radius
0.57 R⊕
default parameter set
Mass
—
default parameter set
Kepler-42
450 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: Muirhead et al. 2012
Host Star
Kepler-42
Stable across source rows
Discovery Year
2011
Stable across source rows
Orbital Period
1.87 day
1.87 to 1.87
Semi-Major Axis
0.02 au
0.01 to 0.03
Radius
0.57 Rearth
0.57 to 3.08
Equilibrium Temperature
450 K
450 to 964
Scale Comparison
Radius against familiar reference worlds
Current adopted radius: 0.57 R⊕ • circles scaled linearly by radius
Earth
1.0 R⊕ baseline
Kepler-42 d
0.57 R⊕
Jupiter
11.2 R⊕ reference
Provenance
Underlying measurements and references
Evidence Summary
Rows
13
Refs
13
Methods
1
Discoverystable
Facilitystable
Periodstable
Radiusdisputed
Massstable
Eq. Tempdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2011 | Transit | Kepler | 0.95 m Kepler Telescope | 1.87 day | 0.57 Rearth | — | 450 K | Muirhead et al. 2012 |
| 2011 | Transit | Kepler | 0.95 m Kepler Telescope | 1.87 day | — | — | — | Q1-Q17 DR25 Supplemental KOI Table |
| 2011 | Transit | Kepler | 0.95 m Kepler Telescope | 1.87 day | 3.08 Rearth | — | 964 K | Q1-Q8 KOI Table |
| 2011 | Transit | Kepler | 0.95 m Kepler Telescope | — | 0.77 Rearth | — | — | Berger et al. 2018 |
| 2011 | Transit | Kepler | 0.95 m Kepler Telescope | 1.87 day | 0.69 Rearth | — | 456 K | Q1-Q12 KOI Table |
| 2011 | Transit | Kepler | 0.95 m Kepler Telescope | 1.87 day | 0.67 Rearth | — | — | Mann et al. 2017 |
| 2011 | Transit | Kepler | 0.95 m Kepler Telescope | 1.87 day | 0.69 Rearth | — | 456 K | Q1-Q17 DR24 KOI Table |
| 2011 | Transit | Kepler | 0.95 m Kepler Telescope | 1.87 day | 0.96 Rearth | — | — | Morton et al. 2016 |
| 2011 | Transit | Kepler | 0.95 m Kepler Telescope | 1.87 day | 0.66 Rearth | — | 455 K | Q1-Q17 DR25 KOI Table |
| 2011 | Transit | Kepler | 0.95 m Kepler Telescope | 1.87 day | 0.69 Rearth | — | 456 K | Q1-Q16 KOI Table |
| 2011 | Transit | Kepler | 0.95 m Kepler Telescope | 1.87 day | 2.44 Rearth | — | 456 K | Muirhead et al. 2012 |
| 2011 | Transit | Kepler | 0.95 m Kepler Telescope | — | 0.85 Rearth | — | — | Mann et al. 2013 |
| 2011 | Transit | Kepler | 0.95 m Kepler Telescope | 1.87 day | — | 0.36 Mearth | — | Ofir et al. 2025 |