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The TOI-270 System

3 planets Pictor

TOI-270 is a planetary system in the constellation Pictor hosting 3 confirmed exoplanets, about 73 light-years from Earth.

Size Comparison: The Planets of TOI-270

Earth1.00 R⊕b1.28 R⊕c2.33 R⊕d2.00 R⊕
Compare any two worlds side by side in the Exoplanet Explorer app ›

TOI-270: Star and Habitable Zone

TOI-270

Surface temperature
3,506 K (Sun: 5,772 K)
Mass
0.39 M☉
Radius
0.38 R☉
Too hot Optimistic habitable zone Conservative habitable zone Too cold

Habitable zone of TOI-270: 0.114–0.297 AU (conservative: 0.145–0.281 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 3 Planets in the TOI-270 System

PlanetTypeOrbitRadiusESIDiscovered
TOI-270 bSuper Earth3.4 d1.28 R⊕0.362019
TOI-270 cMini Neptune5.7 d2.33 R⊕0.362019
TOI-270 dMini Neptune11 d2.00 R⊕0.522019

Discovery History

The first planet found here, TOI-270 b, was discovered in 2019 using the transit method.

Frequently Asked Questions About TOI-270

How many planets does TOI-270 have?

TOI-270 has 3 confirmed exoplanets. More may await discovery.

Are any planets in the TOI-270 system habitable?

None of the known planets in TOI-270 orbit within the star's habitable zone.

How far away is TOI-270?

TOI-270 is about 73 light-years from Earth in the constellation Pictor.

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