NGC 646 NED02

NGC 646 NED02 is an elliptical galaxy in the constellation Hydrus about 379 million ly from Earth. It spans roughly 66,000 ly, about 66% of our Milky Way's width. The light reaching us tonight left it about 379 million years ago.

Because its light is 379 million ly from home, you are seeing NGC 646 NED02 as it looked roughly 379 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).