Discovery Method
Radial Velocity
Consistent across records
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ExoplanetDetail
55 Cnc f
Host star 55 Cnc • 260.6 d orbit
Records
9
archive rows
Discovery
2007
Radial Velocity
Radius
—
default parameter set
Mass
48.50 M⊕
default parameter set
55 Cnc
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: Moutou et al. 2026
Host Star
55 Cnc
Stable across source rows
Discovery Year
2007
Stable across source rows
Orbital Period
260.6 day
259.9 to 262
Semi-Major Axis
0.80 au
0.75 to 0.80
Mass
48.50 Mearth
40.40 to 54.66
Provenance
Underlying measurements and references
Evidence Summary
Rows
9
Refs
9
Methods
1
Discoverystable
Facilitystable
Perioddisputed
Massdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2007 | Radial Velocity | Multiple Observatories | Multiple Telescopes | 261.2 day | — | 54.66 Mearth | — | Endl et al. 2012 |
| 2007 | Radial Velocity | Multiple Observatories | Multiple Telescopes | 260.7 day | — | 44.81 Mearth | — | Wright et al. 2009 |
| 2007 | Radial Velocity | Multiple Observatories | Multiple Telescopes | 260.9 day | — | 47.01 Mearth | — | Nelson et al. 2014 |
| 2007 | Radial Velocity | Multiple Observatories | Multiple Telescopes | 262 day | — | 44.81 Mearth | — | Baluev 2015 |
| 2007 | Radial Velocity | Multiple Observatories | Multiple Telescopes | 260.6 day | — | 48.50 Mearth | — | Moutou et al. 2026 |
| 2007 | Radial Velocity | Multiple Observatories | Multiple Telescopes | 260.5 day | — | 40.40 Mearth | — | Harada et al. 2025 |
| 2007 | Radial Velocity | Multiple Observatories | Multiple Telescopes | 259.9 day | — | 47.80 Mearth | — | Bourrier et al. 2018 |
| 2007 | Radial Velocity | Multiple Observatories | Multiple Telescopes | 260 day | — | 45.77 Mearth | — | Fischer et al. 2008 |
| 2007 | Radial Velocity | Multiple Observatories | Multiple Telescopes | 261.0 day | — | 46.88 Mearth | — | Rosenthal et al. 2021 |