Stories Written in the Sky
For over 65,000 years, humans have looked up and seen stories in the stars. The same sky has been mapped by Greek shepherds, Egyptian priests, Chinese astronomers, Aboriginal elders, and Polynesian navigators — each finding different patterns and meanings in the same points of light. Explore star maps, trace the ecliptic, watch constellations drift over millennia, and discover how different cultures read the oldest book ever written: the night sky.
Navigate the night sky, explore famous asterisms, and understand the brightness scale that ranks every star.
Drag to pan across the celestial sphere. Zoom with the scroll wheel. Hover over 40+ named stars to read their myths, spectral types, and magnitudes. Toggle constellation lines, the grid, and the Milky Way band.
Eight famous asterisms animated star-by-star: the Big Dipper, Summer Triangle, Orion’s Belt, Winter Hexagon, Southern Cross, Northern Cross, the Teapot, and Cassiopeia’s W. Each with its mythology from multiple cultures.
Visualize the logarithmic brightness scale from Sirius (mag −1.46) to the naked-eye limit (mag 6). Adjust limiting magnitude to see how many stars appear. Each magnitude step = 2.512x brightness.
The sky is not static. Earth wobbles, stars drift, and the seasons bring different constellations overhead.
Watch Earth’s axis wobble through a 25,772-year cycle. See the North Star change from Thuban (3000 BC) to Polaris (now) to Vega (13,000 AD). Animate 26,000 years or scrub the timeline.
An all-sky view from 40°N latitude. Slide through the months to watch Orion dominate winter, Leo rule spring, the Summer Triangle soar overhead, and Pegasus mark autumn.
Stars move. Scrub through 200,000 years to watch the Big Dipper, Orion, Cassiopeia, and Leo distort beyond recognition. Motion vectors show each star’s direction and speed.
How the sky is officially divided, and the Sun’s annual journey through the zodiac.
Explore the 88 official constellations defined by the International Astronomical Union in 1928. Click any region to read its mythology, area, and classification. Search by name.
Follow the Sun along the ecliptic through all 13 constellations — including Ophiuchus, the sign the Babylonians dropped. Slide through the year and read the mythology of each zodiac sign.
The same sky, seen through different eyes. Indigenous Australian dark constellations and Chinese lunar mansions reveal astronomical traditions thousands of years old.
Aboriginal Australian dark constellations. The Emu is formed not by stars but by dark nebulae in the Milky Way. Its appearance near the horizon signals emu egg harvesting season — 65,000 years of astronomical knowledge.
The 28 Xiu: tracking the Moon’s journey through the sky. Four mythical animals — Azure Dragon, Black Tortoise, White Tiger, Vermilion Bird — guard the four directions, each with seven mansions.