Discovery
Radial Velocity
Host star HD 209458 • 15.47 R⊕ • 3.52 d orbit
Records
23
archive rows
Discovery
—
Radial Velocity
Radius
15.47 R⊕
median non-null value
Mass
217.7 M⊕
median non-null value
HD 209458
1450 K equilibrium
Quick Summary
This first pass still reads from the currently available detail payload. Canonical adopted summaries will replace first-row values in the next backend pass.
Host Star
HD 209458
Discovery
Radial Velocity
Year
1999
Period
3.52 day
Radius
15.23 Rearth
Mass
217.7 Mearth
Eq. Temp
1449 K
Scale Comparison
Current adopted radius: 15.47 R⊕ • circles scaled linearly by radius
Earth
1.0 R⊕ baseline
HD 209458 b
15.47 R⊕
Jupiter
11.2 R⊕ reference
Provenance
Evidence Summary
Rows
23
Refs
23
Methods
1
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 3.52 day | 15.23 Rearth | 217.7 Mearth | 1449 K | Torres et al. 2008 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 3.52 day | — | — | 1484 K | Evans et al. 2015 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 3.52 day | 15.24 Rearth | 219.3 Mearth | 1450 K | Sing et al. 2016 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | — | 16.26 Rearth | 203.4 Mearth | — | Boyajian et al. 2015 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | — | — | — | — | Casasayas-Barris et al. 2020 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 3.52 day | — | 211.4 Mearth | — | Rosenthal et al. 2021 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | — | 15.10 Rearth | — | — | Brown et al. 2001 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 3.52 day | — | 222.2 Mearth | — | Naef et al. 2004 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 3.52 day | 15.92 Rearth | 197.1 Mearth | — | Henry et al. 2000 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 3.52 day | — | — | — | Kokori et al. 2022 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | — | 15.92 Rearth | 217.7 Mearth | — | Cody & Sasselov 2002 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 3.52 day | 16.38 Rearth | — | 1371 K | ExoFOP |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 3.50 day | 15.70 Rearth | 219.3 Mearth | 1450 K | Salz et al. 2015 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 3.52 day | 15.47 Rearth | 226.9 Mearth | 1459 K | Southworth 2010 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | — | — | — | — | Albrecht et al. 2012 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 3.52 day | — | — | — | Kokori et al. 2023 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 3.52 day | 14.80 Rearth | — | — | Knutson et al. 2007 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | — | 9.19 Rearth | — | — | Panek et al. 2023 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 3.52 day | 15.58 Rearth | 232.0 Mearth | — | Stassun et al. 2017 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | — | 15.80 Rearth | 235.2 Mearth | — | del Burgo & Allende Prieto 2016 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 3.52 day | 14.24 Rearth | 200.2 Mearth | — | Charbonneau et al. 2000 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | — | — | — | 1448 K | Barstow et al. 2017 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 3.52 day | 15.23 Rearth | 216.8 Mearth | — | Bonomo et al. 2017 |