IC 4479

IC 4479 is a spiral galaxy in the constellation Boötes about 633 million ly from Earth. It spans roughly 210,000 ly, about 2.1 times the width of our Milky Way. It is receding from us at about 13,601 km/s.

Because its light is 633 million ly from home, you are seeing IC 4479 as it looked roughly 633 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).