NGC 4559B

NGC 4559B is a barred spiral galaxy in the constellation Coma Berenices about 361 million ly from Earth. It spans roughly 65,000 ly, about 65% of our Milky Way's width. The light reaching us tonight left it about 361 million years ago.

Because its light is 361 million ly from home, you are seeing NGC 4559B as it looked roughly 361 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).