IC 4571
IC 4571 is a barred spiral galaxy in the constellation Triangulum Australe about 229 million ly from Earth. It spans roughly 110,000 ly, about the width of our Milky Way. The light reaching us tonight left it about 229 million years ago.
Illustration from its catalogued shape, not a photograph
Because its light is 229 million ly from home, you are seeing IC 4571 as it looked roughly 229 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.
apartNGC 6183Spiral21 million ly
apartIC 4578Barred spiral31 million ly
apartIC 4484Spiral36 million ly
apartIC 4644Barred spiral41 million ly
apartNGC 6328Spiral45 million ly
apart
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).