Directory · Worlds

Planets

A catalogue of worlds by object type: the eight planets around our Sun, featured exoplanets and candidates around other stars, and a candidate in another galaxy.

26 planet field notes · 8 around the Sun · 18 exoplanets and candidates · 5 dwarf planets in a separate collection

Solar System

MercuryField notesThe smallest planet: cratered, airless, and extreme. VenusField notesA runaway greenhouse beneath sulfuric clouds. EarthField notesOur ocean-rich home, seen live by DSCOVR EPIC. MarsField notesThe red planet, through rover photography. JupiterField notesA gas giant of bands, storms, and a vast magnetosphere. SaturnField notesRings, moons, and a Cassini portrait. UranusField notesAn ice giant that rotates on its side. NeptuneField notesRemote, cold, and home to supersonic winds.

Proxima Centauri

Proxima bField notesA temperate, roughly Earth-mass world. Proxima cCandidateA proposed cold outer world, still unconfirmed. Proxima dField notesA confirmed sub-Earth in a five-day orbit.

TRAPPIST-1

TRAPPIST-1 bField notesA scorched, Earth-sized rock studied by JWST. TRAPPIST-1 cField notesA hot Earth-sized world with no thick atmosphere. TRAPPIST-1 dField notesThe smallest world, at the inner edge of the habitable zone. TRAPPIST-1 eField notesA temperate, Earth-sized world in the habitable zone. TRAPPIST-1 fField notesA cool, Earth-sized world on the outer edge. TRAPPIST-1 gField notesThe largest planet, cold and possibly airless. TRAPPIST-1 hField notesThe small, frozen outermost world.

TOI-700

TOI-700 bField notesA hot, Earth-sized inner world. TOI-700 cField notesA sub-Neptune between the rocky worlds. TOI-700 eField notesA second Earth-sized world in the habitable zone. TOI-700 dField notesThe first Earth-sized habitable-zone planet from TESS.

Teegarden's Star

Teegarden bField notesA temperate, roughly Earth-mass world. Teegarden cField notesA cooler Earth-mass sibling in the habitable zone. Teegarden dCandidateA proposed cold outer world, still unconfirmed.

In the Whirlpool Galaxy

M51-ULS-1bCandidateA Saturn-sized world, if confirmed, around an X-ray binary 28 million light-years away.
Planets and systems are two views of the same universe. This page groups worlds by object type; Systems groups the same worlds by their host star. Every featured planet is included here, and the dwarf-planet collection is available as a separate planetary class.

Looking for the stars at the centre of these systems? Read the field notes for the Sun, Proxima Centauri, TRAPPIST-1, TOI-700, and Teegarden's Star.

Dwarf planets meet part of the IAU planetary definition but do not clear their orbital neighbourhoods; they are catalogued under dwarf planets. Ocean moons and ice-rich bodies are compared separately in icy worlds because they are not planets.