Chart a constellation nobody has ever seen -- stars, figure, Greek letters, and a Latin-shaped name, reproducible from its seed.
The real sky's 88 constellations carry Latin names inherited from Greek mythology, Renaissance navigators, and Enlightenment astronomers -- Cygnus the swan, Vulpecula the little fox, Norma the set square. Their stars are labeled with Greek letters in rough order of brightness, alpha for the brightest, a system introduced by Johann Bayer in 1603. A constellation is not a physical group at all: its stars usually lie at wildly different distances and merely happen to align from Earth's point of view. This generator plays the same naming game for skies that don't exist, assembling Latin-shaped names and lettering each invented figure's stars from alpha on down.
Every press charts a constellation nobody has ever seen: six to ten stars scattered by a seeded wander, chained into a figure (sometimes with a branch), lettered from alpha like a real star atlas, floating over a field of faint background stars -- and named in convincing fake Latin, Vulpix Borealis to Draconerna Obscura. The seed on the card recreates any sky exactly.
Every result here is drawn using crypto.getRandomValues() -- the Web Crypto API's cryptographically secure randomness -- instead of Math.random(), so it's genuinely unpredictable, not just statistically random. Learn more.
Worldbuilders chart the night skies of invented planets; writers pull a constellation and its name as a myth prompt ('what story do people tell about Umbrella Errans?'); game masters use them as star charts, banners, and prophecy props. The SVG copy button takes the chart anywhere at any size.
Each press draws a 32-bit seed from the site's cryptographically secure randomness and unfolds the sky from it: the main stars are placed by a bounded random walk (so figures sprawl the way real constellations do), joined in sequence with an occasional branch, given varied magnitudes with the brightest drawn as the twinkle-crossed alpha, and labeled with Greek letters in figure order. The name is assembled from Latin-shaped syllables -- with an epithet like Minor or Borealis a bit under half the time -- by the same seed.
No -- both the figure and the name are invented per press. For the real 88, with their actual star charts and Bayer designations, use the site's Constellation generator in Space & Astronomy.
Real atlases label a constellation's stars alpha, beta, gamma in rough order of brightness. Here they follow the figure in order, with the accented, twinkle-crossed star as the alpha.
Yes -- stars, figure, and name are all determined by the seed stamped on the card.
Coat of Arms · Mandala · Maze · Game of Life · Langton's Ant · Fractal