domain 23 / 55 · OURANOS · the turning heavens
OURANOS
cosmos, astronomy, space, and the search for life beyond.
14 stars charted · the rule sights each in turn · sealed & live
☉ THE STAR CHART · the planisphere turns, the rule sights
CHART · —
hover a star · click to enter its sphere
☉ the stars
every star, named & enterablePROPULSION LAB · PRL8 toolkits · each rated→COSMOLOGY · COSouranos · the universe at large · interactive · vellum · 11→ASTROBIOLOGY · ABLouranos · the search for life beyond · interactive · vellum →THE CELESTIAL FIXouranos · TOP's idea for the sky — fix YOUR position fr→THE COSMIC DISTANCE LADDERouranos · measuring the universe in rungs — error compounds →THE REDSHIFTouranos · v = H₀·d — the farther a galaxy, the faster it fle→THE FIRST LIGHTouranos · the CMB — a near-perfect 2.725 K blackbody, the af→THE HR DIAGRAMouranos · the Hertzsprung–Russell diagram — a star's co→KEPLER’S THIRD LAWouranos · square the year = cube the distance (Kepler 1619)→THE TRANSIT METHODouranos · find an unseen planet by the dip it casts (Kepler →THE MAGNITUDE SCALEouranos · backwards and logarithmic — 5 magnitudes = 100× (P→THE SCHWARZSCHILD RADIUSouranos · the horizon where escape velocity reaches light (S→THE DRAKE EQUATIONouranos · N = R⋆·f_p·n_e·f_l·f_i·f_c·L — organising our igno→THE HABITABLE ZONEouranos · the Goldilocks band where liquid water holds — r ∝→