Discovery Method
Radial Velocity
Consistent across records
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ExoplanetDetail
HD 18742 b
Host star HD 18742 • 766 d orbit
Records
3
archive rows
Discovery
2011
Radial Velocity
Radius
—
default parameter set
Mass
1080.6 M⊕
default parameter set
HD 18742
temperature unconstrained
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: Luhn et al. 2019
Host Star
HD 18742
Stable across source rows
Discovery Year
2011
Stable across source rows
Orbital Period
766 day
766 to 772
Semi-Major Axis
1.82 au
1.82 to 1.98
Mass
1080.6 Mearth
858.1 to 1185.5
Provenance
Underlying measurements and references
Evidence Summary
Rows
3
Refs
3
Methods
1
Discoverystable
Facilitystable
Perioddisputed
Massdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2011 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 772 day | — | 858.1 Mearth | — | Johnson et al. 2011 |
| 2011 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 772 day | — | 1185.5 Mearth | — | Stassun et al. 2017 |
| 2011 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 766 day | — | 1080.6 Mearth | — | Luhn et al. 2019 |