Skip to main content

The tau Cet System

3 planets Cetus

tau Cet is a planetary system in the constellation Cetus hosting 3 confirmed exoplanets, about 12 light-years from Earth.

tau Cet: Star and Habitable Zone

tau Cet

Mass
0.78 M☉

All 3 Planets in the tau Cet System

PlanetTypeOrbitRadiusESIDiscovered
tau Cet fSuper Earth636 d0.552017
tau Cet gTerrestrial20 d0.342017
tau Cet hTerrestrial49 d0.442017

Discovery History

The first planet found here, tau Cet f, was discovered in 2017 using the radial velocity method.

Frequently Asked Questions About tau Cet

How many planets does tau Cet have?

tau Cet has 3 confirmed exoplanets. More may await discovery.

Are any planets in the tau Cet system habitable?

None of the known planets in tau Cet orbit within the star's habitable zone.

How far away is tau Cet?

tau Cet is about 12 light-years from Earth in the constellation Cetus.

Exoplanet Explorer app icon

Explore the tau Cet 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.

Download on the App Store