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Explorealienworlds

4,081
confirmed
4,231
systems
62
habitable zone
147
earth-like
Featured system
Ultracool red dwarf · M8V

TRAPPIST-1

Seven Earth-sized rocky worlds orbiting an ultracool red dwarf. Three sit in the habitable zone.

TRAPPIST-1fTidally locked ocean-ice eyeball world
System · 7 planets
40.7 lyDisc. 2017
habitable zonerockymulti-planet
All systems · 20
G2V0 ly
Yellow dwarf

Solar System

Our home system. Eight planets from scorching Mercury to icy Neptune.

EarthHabitable blue marble, our pale reference
+2
homerocky
G2V + K1V + M5.5Ve4.24 ly
Triple system

Alpha Centauri

The nearest star system to the Sun. Proxima b sits in the habitable zone, just 4.2 light-years away.

Proxima bNearest potentially habitable world
nearesthabitable zone
G2IV50.4 ly
Yellow subgiant

51 Pegasi

First exoplanet discovered around a Sun-like star. A hot Jupiter with a 4-day orbit.

51 Pegasi bThe original hot Jupiter — turbulent, scorched
hot jupiterhistoric
K+M245 ly
Eclipsing binary

Kepler-16

A circumbinary planet orbiting two stars — like Tatooine from Star Wars.

Kepler-16bSaturn-mass gas world with two suns
binarycircumbinary
G0V159 ly
Yellow dwarf

HD 209458

Home to the first transiting exoplanet and the first with a confirmed atmosphere.

HD 209458 bEvaporating hot Jupiter, tail of hydrogen
hot jupiterhistoric
G0V2,790 ly
Sun-like

Kepler-90

An 8-planet system rivalling our Solar System in count. Discovered with AI.

Kepler-90hOuter gas giant, Jupiter analogue
+2
multi-planethistoric
K?V1,206 ly
Orange dwarf

Kepler-442

One of the most Earth-like planets found — rocky, in the habitable zone of a K-type star.

Kepler-442 bHigh habitability index, super-Earth
habitable zoneEarth-like
F0V133 ly
Young F-type

HR 8799

Four massive gas giants directly imaged orbiting a young star — a real photograph of a planetary system.

HR 8799 eYoung, glowing hot gas giant
direct imaginggas giant
K0IV-V40.9 ly
Orange subgiant

55 Cancri

Five planets including a super-Earth that may be a carbon world with a diamond interior.

55 Cancri eCarbon super-Earth, possible diamond crust
multi-planetsuper-earth
K2V64.5 ly
Orange dwarf

HD 189733

A hot Jupiter with deep blue colour from silicate rain. Winds over 8,000 km/h.

HD 189733 bAzure hot Jupiter, sideways glass rain
hot jupiteratmosphere
G0V1,410 ly
Yellow dwarf

WASP-12

An ultra-hot Jupiter being slowly devoured by its star. One of the darkest planets known.

WASP-12 bDarker than asphalt — eating starlight
hot jupiterexotic
M2V101.4 ly
Red dwarf

TOI-700

TESS-discovered system with an Earth-sized planet in the habitable zone of a cool M dwarf.

TOI-700 dEarth-sized temperate world
habitable zoneEarth-like
G6V2,110 ly
Sun-like

Kepler-11

Six tightly packed low-density planets, including probable water worlds. A benchmark compact system.

Kepler-11 fLow-density water world
water worldmulti-planet
M1V579 ly
Red dwarf

Kepler-186

First Earth-sized planet found in the habitable zone of another star.

Kepler-186 fEarth-cousin in M-dwarf habitable zone
habitable zoneEarth-like
M1.5V23.6 ly
Red dwarf

Gliese 667 C

Up to seven planets around a red dwarf, with three potentially in the habitable zone.

Gliese 667 CcSuper-Earth in the habitable zone
habitable zonered dwarf
Pulsar2,300 ly
Millisecond pulsar

PSR 1257+12

The very first exoplanets ever confirmed, orbiting a pulsar. Discovered in 1992.

PSR 1257+12 cIrradiated rock around a neutron star
pulsarhistoric
K7V205 ly
Orange dwarf

TOI-178

A 6-planet resonant chain with two likely water worlds. A laboratory for planetary formation.

TOI-178 gMini-Neptune in perfect resonant chain
water worldmulti-planet
G2V1,400 ly
Sun-like

Kepler-452

Hosts 'Earth's cousin' — a near-Earth-sized planet in the habitable zone of a Sun-like star.

Kepler-452 bEarth's cousin in a Sun-like system
habitable zoneEarth-like
G8.5V11.9 ly
Sun-like

Tau Ceti

A nearby Sun-like star with multiple planet candidates. A staple of science fiction.

Tau Ceti eSuper-Earth in the habitable zone
Sun-likenearest
M3V20.3 ly
Red dwarf

Gliese 581

A red dwarf system with multiple planets, including early habitable zone candidates.

Gliese 581 gContested habitable zone super-Earth
habitable zonered dwarf