IC 172
IC 172
Illustration from its catalogued shape, not a photograph
Barred spiral
type · SBbc
381 million ly
from Earth · from redshift
53k ly
across
14.7
apparent magnitude
Because its light is 381 million ly from home, you are seeing IC 172 as it looked roughly 381 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.
Nearest galaxies
IC 205Spiral30 million ly
apartNGC 850Lenticular31 million ly
apartNGC 868Elliptical37 million ly
apartNGC 863Spiral38 million ly
apartNGC 766Elliptical50 million ly
apartNGC 791Elliptical52 million ly
apart
Worlds in the same direction on the sky→apartNGC 850Lenticular31 million ly
apartNGC 868Elliptical37 million ly
apartNGC 863Spiral38 million ly
apartNGC 766Elliptical50 million ly
apartNGC 791Elliptical52 million ly
apart
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).