Discovery Method
Transit
Consistent across records
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ExoplanetDetail
HD 207897 b
Host star HD 207897 • 2.34 R⊕ • 16.20 d orbit
Records
3
archive rows
Discovery
2021
Transit
Radius
2.34 R⊕
default parameter set
Mass
14.80 M⊕
default parameter set
HD 207897
581.8 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: Polanski et al. 2024
Host Star
HD 207897
Stable across source rows
Discovery Year
2021
Stable across source rows
Orbital Period
16.20 day
16.20 to 16.20
Semi-Major Axis
0.12 au
0.12 to 0.12
Radius
2.34 Rearth
2.34 to 2.50
Mass
14.80 Mearth
14.40 to 14.80
Density
6.29 g/cm**3
5.05 to 6.29
Equilibrium Temperature
581.8 K
581.8 to 641
Scale Comparison
Radius against familiar reference worlds
Current adopted radius: 2.34 R⊕ • circles scaled linearly by radius
Earth
1.0 R⊕ baseline
HD 207897 b
2.34 R⊕
Jupiter
11.2 R⊕ reference
Provenance
Underlying measurements and references
Evidence Summary
Rows
3
Refs
3
Methods
1
Discoverystable
Facilitystable
Periodstable
Radiusdisputed
Massdisputed
Eq. Tempdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2021 | Transit | Transiting Exoplanet Survey Satellite (TESS) | 0.1 m TESS Telescope | 16.20 day | 2.50 Rearth | 14.40 Mearth | 632.2 K | Heidari et al. 2022 |
| 2021 | Transit | Transiting Exoplanet Survey Satellite (TESS) | 0.1 m TESS Telescope | 16.20 day | 2.34 Rearth | 14.80 Mearth | 581.8 K | Polanski et al. 2024 |
| 2021 | Transit | Transiting Exoplanet Survey Satellite (TESS) | 0.1 m TESS Telescope | 16.20 day | 2.38 Rearth | — | 641 K | ExoFOP |