NGC 454 NED02

NGC 454 NED02 is a lenticular galaxy in the constellation Phoenix about 170 million ly from Earth. It spans roughly 96,000 ly, about the width of our Milky Way. The light reaching us tonight left it about 170 million years ago.

Because its light is 170 million ly from home, you are seeing NGC 454 NED02 as it looked roughly 170 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).