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The TOI-4342 System

2 planets Octans

TOI-4342 is a planetary system in the constellation Octans hosting 2 confirmed exoplanets, about 201 light-years from Earth.

Size Comparison: The Planets of TOI-4342

Earth1.00 R⊕b2.33 R⊕c2.35 R⊕
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TOI-4342: Star and Habitable Zone

TOI-4342

Spectral type
M0 V
Surface temperature
3,866 K (Sun: 5,772 K)
Mass
0.59 M☉
Radius
0.60 R☉
Luminosity
0.0750 L☉
TOI-4342 b TOI-4342 c
Too hot Optimistic habitable zone Conservative habitable zone Too cold

Habitable zone of TOI-4342: 0.223–0.568 AU (conservative: 0.282–0.538 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-4342 System

PlanetTypeOrbitRadiusESIDiscovered
TOI-4342 bSuper Earth5.5 d2.33 R⊕0.292023
TOI-4342 cMini Neptune11 d2.35 R⊕0.342023

Discovery History

The first planet found here, TOI-4342 b, was discovered in 2023 using the transit method.

Frequently Asked Questions About TOI-4342

How many planets does TOI-4342 have?

TOI-4342 has 2 confirmed exoplanets. More may await discovery.

Are any planets in the TOI-4342 system habitable?

None of the known planets in TOI-4342 orbit within the star's habitable zone.

How far away is TOI-4342?

TOI-4342 is about 201 light-years from Earth in the constellation Octans.

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