PLANETARY SYSTEM
Kepler-21
1 confirmed planet in our catalogue, 354 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 |
|---|---|---|---|---|
| Kepler-21 b ↗Kepler-21 | Super-Earth | 354 ly | 2.786 days | 2012Transit |
System discovery history
2012 · Kepler-21 b · Transit