NGC 5984

NGC 5984 is a spiral galaxy in the constellation Serpens about 52 million ly from Earth. It spans roughly 37,000 ly, about 37% of our Milky Way's width. It is receding from us at about 1,013 km/s.

Because its light is 52 million ly from home, you are seeing NGC 5984 as it looked roughly 52 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).