Discovery Method
Transit
Consistent across records
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ExoplanetDetail
K2-3 d
Host star K2-3 • 1.46 R⊕ • 44.56 d orbit
Records
14
archive rows
Discovery
2015
Transit
Radius
1.46 R⊕
default parameter set
Mass
2.20 M⊕
default parameter set
K2-3
305.2 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: Diamond-Lowe et al. 2022
Host Star
K2-3
Stable across source rows
Discovery Year
2015
Stable across source rows
Orbital Period
44.56 day
44.56 to 44.57
Semi-Major Axis
0.20 au
0.18 to 0.21
Radius
1.46 Rearth
0.96 to 1.70
Mass
2.20 Mearth
1.60 to 11.10
Equilibrium Temperature
305.2 K
282 to 312
Scale Comparison
Radius against familiar reference worlds
Current adopted radius: 1.46 R⊕ • circles scaled linearly by radius
Earth
1.0 R⊕ baseline
K2-3 d
1.46 R⊕
Jupiter
11.2 R⊕ reference
Provenance
Underlying measurements and references
Evidence Summary
Rows
14
Refs
14
Methods
1
Discoverystable
Facilitystable
Perioddisputed
Radiusdisputed
Massdisputed
Eq. Tempdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 44.56 day | 1.11 Rearth | — | — | Kruse et al. 2019 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 44.56 day | 1.62 Rearth | 1.60 Mearth | 312 K | Bonomo et al. 2023 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 44.56 day | 0.96 Rearth | — | — | Crossfield et al. 2016 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 44.56 day | — | — | — | Fukui et al. 2016 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 44.56 day | 1.51 Rearth | — | 282 K | Sinukoff et al. 2016 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 44.56 day | 1.65 Rearth | 1.80 Mearth | — | Damasso et al. 2018 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 44.56 day | 1.52 Rearth | 7.50 Mearth | — | Dai et al. 2016 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 44.56 day | 1.52 Rearth | — | — | Crossfield et al. 2015 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 44.56 day | 1.70 Rearth | — | — | Vanderburg et al. 2016 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 44.56 day | 1.61 Rearth | — | 300 K | Beichman et al. 2016 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 44.56 day | — | 2.80 Mearth | — | Kosiarek et al. 2019 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 44.56 day | 1.46 Rearth | 2.20 Mearth | 305.2 K | Diamond-Lowe et al. 2022 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 44.56 day | 1.52 Rearth | 2.80 Mearth | 282 K | Howard et al. 2025 |
| 2015 | Transit | K2 | 0.95 m Kepler Telescope | 44.57 day | 1.53 Rearth | 11.10 Mearth | — | Almenara et al. 2015 |