NGC 2557

NGC 2557 is a lenticular galaxy in the constellation Cancer about 225 million ly from Earth. It spans roughly 71,000 ly, about 71% of our Milky Way's width. It is receding from us at about 4,865 km/s.

Because its light is 225 million ly from home, you are seeing NGC 2557 as it looked roughly 225 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).