NGC 4723

NGC 4723 is a spiral galaxy in the constellation Corvus about 61 million ly from Earth. It spans roughly 18,000 ly, about 18% of our Milky Way's width. The light reaching us tonight left it about 61 million years ago.

Because its light is 61 million ly from home, you are seeing NGC 4723 as it looked roughly 61 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).