NGC 6575

NGC 6575 is an elliptical galaxy in the constellation Hercules about 323 million ly from Earth. It spans roughly 140,000 ly, about the width of our Milky Way. It is receding from us at about 6,980 km/s.

Because its light is 323 million ly from home, you are seeing NGC 6575 as it looked roughly 323 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).