NGC 5103

NGC 5103 is a lenticular galaxy in the constellation Canes Venatici about 59 million ly from Earth. It spans roughly 27,000 ly, about 27% of our Milky Way's width. It is receding from us at about 1,283 km/s.

Because its light is 59 million ly from home, you are seeing NGC 5103 as it looked roughly 59 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).