Discovery Method
Pulsar Timing
Consistent across records
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ExoplanetDetail
PSR B1257+12 d
Host star PSR B1257+12 • 98.21 d orbit
Records
3
archive rows
Discovery
1992
Pulsar Timing
Radius
—
default parameter set
Mass
3.90 M⊕
default parameter set
PSR B1257+12
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: Konacki and Wolszczan 2003
Host Star
PSR B1257+12
Stable across source rows
Discovery Year
1992
Stable across source rows
Orbital Period
98.21 day
98.21 to 98.23
Semi-Major Axis
0.46 au
0.46 to 0.47
Mass
3.90 Mearth
2.80 to 3.90
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 |
|---|---|---|---|---|---|---|---|---|
| 1992 | Pulsar Timing | Arecibo Observatory | 305 m Arecibo Radio Telescope | 98.23 day | — | 2.80 Mearth | — | Wolszczan et al. 1992 |
| 1992 | Pulsar Timing | Arecibo Observatory | 305 m Arecibo Radio Telescope | 98.21 day | — | 3.90 Mearth | — | Konacki and Wolszczan 2003 |
| 1992 | Pulsar Timing | Arecibo Observatory | 305 m Arecibo Radio Telescope | 98.22 day | — | 2.80 Mearth | — | Wolszczan 1994 |