NGC 4988

NGC 4988 is a lenticular galaxy in the constellation Centaurus about 100 million ly from Earth. It spans roughly 54,000 ly, about 54% of our Milky Way's width. It is receding from us at about 2,097 km/s.

Because its light is 100 million ly from home, you are seeing NGC 4988 as it looked roughly 100 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).