Atlas 01 · The first twelve light-years Light Years
From Home
ICRS / J2000 1 map unit = 1 ly

01 / Choose your starting point

A working map of the nearest twelve light-years

Pick a nearby star.
Or begin with empty space.

Explore the neighborhood, then carry your choice into a live physics laboratory.

Nearby systems
Physics workspaceEnter lab Blank canvas
01 Interstellar map1 unit = 1 light-year
02 Stellar portraitradius magnified · illustrative
Velocity lens 0.50c
Earth frame8.74 years
Traveler7.57 years

Idealized constant-speed cruise. Special relativity only; acceleration, gravity, and turnaround are omitted.

Ask the atlasGrounded guide
selected record + state only
Pick a star, run a profile, then ask one focused follow-up question.
Phase 1 / Flight dynamics Relativistic journey core
Plotting
Sol → Alpha Centauri 1× · 0.25 yr/s
Velocity now0.000c
Distance remains4.370 ly
Earth elapsed0.000 yr
Traveler elapsed0.000 yr
Time warp

1g proper acceleration, coast capped by the velocity lens, then symmetric braking. Flat spacetime; fuel, gravity, and hazards omitted.

Coordinate note

An honest map needs a declared frame.

Marker sizes are enlarged so they can be clicked. The separate stellar portrait changes scale intentionally and says so; neither marker nor portrait radius is physical.