The LTT 1445 A System
LTT 1445 A is a planetary system in the constellation Eridanus hosting 2 confirmed exoplanets around 3 stars, about 22 light-years from Earth.
Size Comparison: The Planets of LTT 1445 A
Star LTT 1445 A and Its Habitable Zone
LTT 1445 A
- Surface temperature
- 3,340 K (Sun: 5,772 K)
- Mass
- 0.26 M☉
- Radius
- 0.27 R☉
Habitable zone of LTT 1445 A: 0.073–0.190 AU (conservative: 0.092–0.180 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 1445 A System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| LTT 1445 A b | Super Earth | 5.4 d | 1.34 R⊕ | 0.36 | 2019 |
| LTT 1445 A c | Terrestrial | 3.1 d | 1.15 R⊕ | 0.39 | 2022 |
Discovery History
The first planet found here, LTT 1445 A b, was discovered in 2019 using the transit method. The most recent addition, LTT 1445 A c, followed in 2022.
- 2019 — LTT 1445 A b (Transit)
- 2022 — LTT 1445 A c (Transit)
Frequently Asked Questions About LTT 1445 A
How many planets does LTT 1445 A have?
LTT 1445 A has 2 confirmed exoplanets distributed around its 3 stars. More may await discovery.
Are any planets in the LTT 1445 A system habitable?
None of the known planets in LTT 1445 A orbit within the star's habitable zone.
How far away is LTT 1445 A?
LTT 1445 A is about 22 light-years from Earth in the constellation Eridanus.
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