IC 4398

IC 4398 is a barred spiral galaxy in the constellation Boötes about 591 million ly from Earth. It spans roughly 110,000 ly, about the width of our Milky Way. It is receding from us at about 12,689 km/s.

Because its light is 591 million ly from home, you are seeing IC 4398 as it looked roughly 591 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).