NGC 4873

NGC 4873 is a lenticular galaxy in the constellation Coma Berenices about 271 million ly from Earth. It spans roughly 64,000 ly, about 64% of our Milky Way's width. It is receding from us at about 5,715 km/s.

Because its light is 271 million ly from home, you are seeing NGC 4873 as it looked roughly 271 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).