NGC 7740

NGC 7740 is a lenticular galaxy in the constellation Pegasus about 423 million ly from Earth. It spans roughly 130,000 ly, about the width of our Milky Way. The light reaching us tonight left it about 423 million years ago.

Because its light is 423 million ly from home, you are seeing NGC 7740 as it looked roughly 423 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). Distance computed by gravityfinder from redshift via Hubble's law (H0 = 70 km/s/Mpc).