NGC 3810

NGC 3810 is a spiral galaxy in the constellation Leo about 46 million ly from Earth. It spans roughly 45,000 ly, about 45% of our Milky Way's width. It is receding from us at about 958 km/s.

Because its light is 46 million ly from home, you are seeing NGC 3810 as it looked roughly 46 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).