IC 770

IC 770 is a galaxy in the constellation Virgo about 57 million ly from Earth. It spans roughly 7,700 ly, about 8% of our Milky Way's width. The light reaching us tonight left it about 57 million years ago.

Because its light is 57 million ly from home, you are seeing IC 770 as it looked roughly 57 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). Distance computed by gravityfinder from redshift via Hubble's law (H0 = 70 km/s/Mpc).