The LTT 3780 System
LTT 3780 is a planetary system in the constellation Hydra hosting 2 confirmed exoplanets around 2 stars, about 72 light-years from Earth.
Size Comparison: The Planets of LTT 3780
Star LTT 3780 and Its Habitable Zone
LTT 3780
- Surface temperature
- 3,358 K (Sun: 5,772 K)
- Mass
- 0.38 M☉
- Radius
- 0.38 R☉
- Luminosity
- 0.0165 L☉
- Age
- 3.1 billion years (Sun: 4.6)
Habitable zone of LTT 3780: 0.105–0.275 AU (conservative: 0.133–0.261 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
See the full interactive habitable-zone view in the Exoplanet Explorer app ›
All 2 Planets in the LTT 3780 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| LTT 3780 b | Super Earth | 0.8 d | 1.33 R⊕ | 0.30 | 2020 |
| LTT 3780 c | Super Earth | 12 d | 2.39 R⊕ | 0.56 | 2020 |
Discovery History
The first planet found here, LTT 3780 b, was discovered in 2020 using the transit method.
- 2020 — LTT 3780 b (Transit)
- 2020 — LTT 3780 c (Transit)
Frequently Asked Questions About LTT 3780
How many planets does LTT 3780 have?
LTT 3780 has 2 confirmed exoplanets distributed around its 2 stars. More may await discovery.
Are any planets in the LTT 3780 system habitable?
None of the known planets in LTT 3780 orbit within the star's habitable zone.
How far away is LTT 3780?
LTT 3780 is about 72 light-years from Earth in the constellation Hydra.
Explore the LTT 3780 system in the app
Browse, filter and compare 6,000+ exoplanets on iPhone, iPad and Apple Watch — with habitable-zone views, widgets and offline data.
