NGC 3017

NGC 3017 is an elliptical galaxy in the constellation Sextans about 291 million ly from Earth. It spans roughly 86,000 ly, about the width of our Milky Way. The light reaching us tonight left it about 291 million years ago.

Because its light is 291 million ly from home, you are seeing NGC 3017 as it looked roughly 291 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).