IC 2024
IC 2024 is a barred spiral galaxy in the constellation Reticulum about 545 million ly from Earth. It spans roughly 170,000 ly, about 1.7 times the width of our Milky Way. The light reaching us tonight left it about 545 million years ago.
Illustration from its catalogued shape, not a photograph
Because its light is 545 million ly from home, you are seeing IC 2024 as it looked roughly 545 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 1506Elliptical17 million ly
apartIC 1991Spiral29 million ly
apartIC 2033Spiral36 million ly
apartIC 2050Barred spiral37 million ly
apartIC 2066Barred spiral38 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).