NGC 3934

NGC 3934 is a spiral galaxy in the constellation Leo about 169 million ly from Earth. It spans roughly 45,000 ly, about 45% of our Milky Way's width. It is receding from us at about 3,626 km/s.

Because its light is 169 million ly from home, you are seeing NGC 3934 as it looked roughly 169 million years ago. The photons left before that much of history had passed, and are only now reaching us. This distance is estimated from the galaxy's redshift, so the lookback time is approximate.

Source: structural data (position, morphology, brightness, redshift) from OpenNGC (CC BY-SA). Recession velocity from RC3 (de Vaucouleurs et al. 1991, via NASA/HEASARC, public domain). Distance computed by gravityfinder from redshift via Hubble's law (H0 = 70 km/s/Mpc).