NGC 3109 — galaxy, shown live in Cosmoscope, a real-time 3D map of the universe.
A thin, edge-on streak of a galaxy at the very edge of the Local Group, heading the small Antlia–Sextans group just beyond it.
NGC 3109 is placed at its true position on the sky and at its real measured distance, not as a flat backdrop. Fly out from the Sun in the live 3D view and watch it change from a point of light into structure as you approach, with the scale bar showing just how far out you have travelled.