NGC 739

NGC 739 is a lenticular galaxy in the constellation Triangulum about 210 million ly from Earth. It spans roughly 50,000 ly, about 50% of our Milky Way's width. It is receding from us at about 4,411 km/s.

Because its light is 210 million ly from home, you are seeing NGC 739 as it looked roughly 210 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).