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Largest Constellations in the Sky Quiz

How well do you know the largest constellations in the sky? Floored turns the ranking into a building: floor 1 is the top of the list. We name a floor, you guess what's on it, and the lift rides to whatever you picked so you know to go higher or lower.

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Free, no sign-up · 5 lists, a few minutes

How it works

You get a few guesses per floor. Land it on your first guess for 10 points; a near miss still scores. After the constellations round, four more lists keep the ride going.

Show the full ranking (30)
  1. Hydra 1,303 sq deg
    Its brightest star, Alphard, has a traditional name meaning 'the solitary one'.
  2. Virgo 1,294 sq deg
    It holds the Virgo Cluster, including M87, whose black hole was the first ever imaged.
  3. Ursa Major 1,280 sq deg
    Its best-known star pattern is the Big Dipper, also called the Plough.
  4. Cetus 1,231 sq deg
    Mira, a star in Cetus, was the first variable star ever discovered.
  5. Hercules 1,225 sq deg
    It contains two bright globular clusters, M13 and M92.
  6. Eridanus 1,138 sq deg
    Its brightest star, Achernar, is one of the flattest stars known.
  7. Pegasus 1,121 sq deg
    51 Pegasi was the first Sun-like star found to have an exoplanet.
  8. Draco 1,083 sq deg
    Its star Thuban was the northern pole star from 3942 BC to 1793 BC.
  9. Centaurus 1,060 sq deg
    Proxima Centauri, about 4.25 light-years away, lies within it.
  10. Aquarius 980 sq deg
    Babylonians knew it as 'The Great One', representing the god Ea.
  11. Ophiuchus 948 sq deg
    Its name means 'serpent-bearer', and it is drawn as a man grasping a snake.
  12. Leo 947 sq deg
    Ancient Greeks saw it as the Nemean Lion killed by Heracles.
  13. Boötes 907 sq deg
    Its star Arcturus is the brightest star in the northern celestial hemisphere.
  14. Pisces 889 sq deg
    The March equinox currently lies within its borders.
  15. Sagittarius 867 sq deg
    The center of the Milky Way lies in its western part.
  16. Cygnus 804 sq deg
    Cygnus X-1 here was the first X-ray source widely believed to be a black hole.
  17. Taurus 797 sq deg
    It hosts the Pleiades and the Hyades, two of the nearest star clusters to Earth.
  18. Camelopardalis 757 sq deg
    Introduced in 1612 or 1613, this large but faint constellation represents a giraffe.
  19. Andromeda 722 sq deg
    The Andromeda Galaxy (M31) in it can be seen with the naked eye.
  20. Puppis 673 sq deg
    It was once part of Argo Navis, the ship of Jason and the Argonauts.
  21. Auriga 657 sq deg
    Its brightest star, Capella, is actually a multiple star system.
  22. Aquila 652 sq deg
    Its brightest star, Altair, forms the Summer Triangle with Vega and Deneb.
  23. Serpens 637 sq deg
    It is the only modern constellation split into two separate parts.
  24. Perseus 615 sq deg
    Its star Algol visibly dims because it is an eclipsing binary.
  25. Cassiopeia 598 sq deg
    It represents Queen Cassiopeia, shown seated on her throne.
  26. Orion 594 sq deg
    Its two brightest stars, Rigel and Betelgeuse, are both supergiants.
  27. Cepheus 588 sq deg
    Its star Delta Cephei is the prototype of Cepheid variable stars.
  28. Lynx 545 sq deg
    Hevelius created it in 1687 from faint stars, naming it Lynx because of its faintness.
  29. Libra 538 sq deg
    Ancient Greeks saw its stars as the Claws of the Scorpion.
  30. Gemini 514 sq deg
    Clyde Tombaugh found Pluto in 1930 on photographic plates centred on a Gemini star.

Source: Wikipedia: IAU designated constellations by solid angle · as of 2026-10

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