Name 100 Planets — Okay, 44 Worlds Will Do
Mercury, Venus, Earth, Mars — every player starts strong. The name 100 planets challenge (target: all 44) asks for the whole neighborhood: eight planets, five dwarf planets, the famous moons, and the asteroids that made the news.
This list is the solar system only, validated against 44 entries: Jupiter's Galilean moons, Saturn's Titan and Enceladus, Pluto and its dwarf-planet cousins, Mars's lumpy little Phobos and Deimos. Exoplanets need not apply — Proxima b is somebody else's quiz.
The strategy is orbital: work outward from the Sun, then tour the moons planet by planet, then sweep the asteroid belt. The name 100 planets quiz is short, unforgiving, and over in one glorious sweep — or one forgotten moon of Uranus.
Rules in 10 seconds
- 10 minutes on the clock — it starts when you type your first answer.
- Every entry is validated against the bundled list. Only real answers count.
- Spelling is forgiving: case, hyphens, and plural forms are all matched.
- Reach 44 before 0:00 — or share your score and make your friends try.
FAQ
Is Pluto a planet here?
Pluto is on the list as a dwarf planet, alongside Ceres, Eris, Haumea, and Makemake. The 2006 demotion doesn't disqualify it — it just changes the label.
Do moons count?
Yes — the famous ones. Europa, Titan, Ganymede, Triton, and Charon all score, and our own Moon answers to Luna too.
Are exoplanets included?
No. Only our solar system: 8 planets, 5 dwarf planets, 24 moons, and 7 asteroids — 44 worlds total, and the goal is all of them.