StarryDex · An Interactive Atlas of 661 Worlds
A Journey Through the Solar System
Scroll, and travel from the boiling surface of the Sun to the frozen winds of Neptune — every world rendered live in 3D. Then keep going: 369 stars, 292 planets and the tools to know them.
01 / 08 · Planet
Mercury
The Scorched Sprinter
A year here lasts just 88 days, yet a single day drags on for 59. The sunlit side bakes at 427 °C while the night side falls to −173 °C.
- 0.39 AUfrom the Sun
- 0.38×Earth's radius
- 0known moons
- 167 °Cavg temperature
02 / 08 · Planet
Venus
The Backwards Furnace
The hottest planet of all, wrapped in clouds of sulfuric acid — and it spins backwards, so slowly that one day outlasts its entire year.
- 0.72 AUfrom the Sun
- 0.95×Earth's radius
- 0known moons
- 464 °Cavg temperature
03 / 08 · Planet
Earth
The Pale Blue Dot
Seventy-one percent ocean, one Moon, and — as far as anyone can prove — the only place in the universe where someone has ever looked up.
- 1.00 AUfrom the Sun
- 1.00×Earth's radius
- 1known moons
- 15 °Cavg temperature
04 / 08 · Planet
Mars
The Rusted Frontier
Home to Olympus Mons, a volcano nearly three times the height of Everest — and the next world human beings intend to walk on.
- 1.52 AUfrom the Sun
- 0.53×Earth's radius
- 2known moons
- -63 °Cavg temperature
05 / 08 · Planet
Jupiter
The Giant Guardian
Heavier than every other planet combined. Its Great Red Spot is a storm wider than Earth that has raged for at least 190 years.
- 5.20 AUfrom the Sun
- 11.2×Earth's radius
- 95known moons
- -108 °Cavg temperature
06 / 08 · Planet
Saturn
The Ringed Jewel
Its rings stretch some 282,000 km across, yet average barely ten metres thick — a razor-thin halo of ice and rock.
- 9.58 AUfrom the Sun
- 9.45×Earth's radius
- 146known moons
- -139 °Cavg temperature
07 / 08 · Planet
Uranus
The Sideways World
Knocked almost fully onto its side, it rolls around the Sun like a barrel — with the coldest planetary atmosphere ever measured.
- 19.22 AUfrom the Sun
- 4.0×Earth's radius
- 28known moons
- -197 °Cavg temperature
08 / 08 · Planet
Neptune
The Windswept Deep
Found by mathematics before any telescope ever saw it. Winds here top 2,000 km/h — the fastest measured in the Solar System.
- 30.05 AUfrom the Sun
- 3.88×Earth's radius
- 16known moons
- -201 °Cavg temperature
Journey complete · you are ~4.5 billion km from the Sun
That was only the neighbourhood.
The Solar System is one street in a galaxy of hundreds of billions of stars. StarryDex catalogues 661 of the real ones — with NASA imagery, live space weather and the numbers to back every claim.
Planet surface maps by Solar System Scope (CC BY 4.0) · Rendered live in WebGL — nothing here is a video.
