PLANETARY SYSTEM
HD 209458
1 confirmed planet in our catalogue, 157.5 light-years from Earth.
Ordered by orbital period where known. Diagram is illustrative; distances and planet sizes are not to scale.
| World / host star | Type | Distance | Year length | Discovery |
|---|---|---|---|---|
| HD 209458 b ↗HD 209458 | Gas giant | 157.5 ly | 3.525 days | 1999Radial Velocity |
System discovery history
1999 · HD 209458 b · Radial Velocity