NGC 3957

NGC 3957 is a lenticular galaxy in the constellation Crater about 79 million ly from Earth. It spans roughly 74,000 ly, about 74% of our Milky Way's width. It is receding from us at about 1,703 km/s.

Because its light is 79 million ly from home, you are seeing NGC 3957 as it looked roughly 79 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).