Terrestrial planet · Teegarden's Star
Teegarden's Star b
ExoplanetsHabitable-zone candidateDiscovered 2019
Scientific overview
Teegarden's Star b is a terrestrial planet orbiting Teegarden's Star, completing an orbit every 5 days, about 12 light-years from Earth. It was discovered in 2019 using the radial velocity method.
Host star
Planetary system — Teegarden's Star system
View the Teegarden's Star system (3 known planets).
| Planet | Class | Radius (R⊕) | Period (d) | Distance (ly) |
|---|---|---|---|---|
| Teegarden's Star bRadial Velocity · 2019 | Terrestrial planet | 1.05 | 4.9063 | 12 |
| Teegarden's Star cRadial Velocity · 2019 | Terrestrial planet | 1.02 | 11.416 | 12 |
| Teegarden's Star dRadial Velocity · 2024 | Terrestrial planet | 0.95 | 26.13 | 12 |
Discovery and detection
Detection method
Radial Velocity Method
Discovery year
2019
Habitability notes
Teegarden's Star b lies in the habitable zone of its star, the range of orbits where liquid water could in principle exist on a planet's surface. This makes it a candidate of interest for habitability studies — but lying in the habitable zone is not evidence that the planet is habitable or inhabited; its atmosphere and surface conditions remain unknown.
Knowledge connections
- OrbitsTeegarden's Star
- Member of systemTeegarden's Star system
- Discovered by methodRadial Velocity Method
- Catalogued inNASA Exoplanet Archive
- Habitable-zone candidateHabitable zone