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The TOI-756 System

2 planets Centaurus

TOI-756 is a planetary system in the constellation Centaurus hosting 2 confirmed exoplanets, about 281 light-years from Earth.

Size Comparison: The Planets of TOI-756

Earth1.00 R⊕b2.81 R⊕
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Planets without a measured radius are not shown.

TOI-756: Star and Habitable Zone

TOI-756

Spectral type
M1 V
Surface temperature
3,657 K (Sun: 5,772 K)
Mass
0.51 M☉
Radius
0.51 R☉
Luminosity
0.0410 L☉
Age
3.2 billion years (Sun: 4.6)
TOI-756 b TOI-756 c
Too hot Optimistic habitable zone Conservative habitable zone Too cold

Habitable zone of TOI-756: 0.165–0.426 AU (conservative: 0.209–0.403 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 TOI-756 System

PlanetTypeOrbitRadiusESIDiscovered
TOI-756 bMini Neptune1.2 d2.81 R⊕2025
TOI-756 cCold Gas Giant149 d2025

Discovery History

The first planet found here, TOI-756 b, was discovered in 2025 using the transit method.

Frequently Asked Questions About TOI-756

How many planets does TOI-756 have?

TOI-756 has 2 confirmed exoplanets. More may await discovery.

Are any planets in the TOI-756 system habitable?

None of the known planets in TOI-756 orbit within the star's habitable zone.

How far away is TOI-756?

TOI-756 is about 281 light-years from Earth in the constellation Centaurus.

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