NGC 3689

NGC 3689 is a spiral galaxy in the constellation Leo about 128 million ly from Earth. It spans roughly 55,000 ly, about 55% of our Milky Way's width. It is receding from us at about 2,722 km/s.

Because its light is 128 million ly from home, you are seeing NGC 3689 as it looked roughly 128 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).