NGC 5594

NGC 5594 is an elliptical galaxy in the constellation Boötes about 520 million ly from Earth. It spans roughly 220,000 ly, about 2.2 times the width of our Milky Way. The light reaching us tonight left it about 520 million years ago.

Because its light is 520 million ly from home, you are seeing NGC 5594 as it looked roughly 520 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).