IC 186A

IC 186A is a lenticular galaxy in the constellation Cetus about 598 million ly from Earth. It spans roughly 210,000 ly, about 2.1 times the width of our Milky Way. The light reaching us tonight left it about 598 million years ago.

Because its light is 598 million ly from home, you are seeing IC 186A as it looked roughly 598 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).