Study Maps Edge of Milky Way’s Star-Forming Disc Around 40,000 Light-Years

The briefing

Astronomers propose that the Milky Way’s star-forming disc ends roughly 11.3–12.2 kiloparsecs from the galactic center, about 40,000 light-years. The result, published in Astronomy & Astrophysics, sharpens our picture of where new stars are born in our Galaxy.