NGC 1575

NGC 1575 is a spiral galaxy in the constellation Eridanus about 435 million ly from Earth. It spans roughly 190,000 ly, about 1.9 times the width of our Milky Way. The light reaching us tonight left it about 435 million years ago.

Because its light is 435 million ly from home, you are seeing NGC 1575 as it looked roughly 435 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).