NGC 2804
NGC 2804 is a lenticular galaxy in the constellation Cancer about 387 million ly from Earth. It spans roughly 160,000 ly, about 1.6 times the width of our Milky Way. It is receding from us at about 8,117 km/s.
Illustration from its catalogued shape, not a photograph
Because its light is 387 million ly from home, you are seeing NGC 2804 as it looked roughly 387 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.
apartNGC 2809Lenticular2.8 million ly
apartNGC 2807BLenticular8.2 million ly
apartNGC 2774Elliptical17 million ly
apartIC 2457Barred spiral18 million ly
apartNGC 2791Lenticular19 million ly
apart
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).