IC 999
IC 999 is a lenticular galaxy in the constellation Boötes about 266 million ly from Earth. It spans roughly 66,000 ly, about 66% of our Milky Way's width. It is receding from us at about 5,738 km/s.
Illustration from its catalogued shape, not a photograph
Because its light is 266 million ly from home, you are seeing IC 999 as it looked roughly 266 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 5628Elliptical9.8 million ly
apartNGC 5490CBarred spiral11 million ly
apartIC 982Lenticular16 million ly
apartIC 983Barred spiral16 million ly
apartNGC 5525Lenticular19 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).