IC 171
IC 171
Illustration from its catalogued shape, not a photograph
Lenticular
type · S0-a
249 million ly
from Earth · from redshift
163k ly
across
13.7
apparent magnitude
Because its light is 249 million ly from home, you are seeing IC 171 as it looked roughly 249 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
NGC 712Lenticular7.2 million ly
apartNGC 750Elliptical9.9 million ly
apartNGC 751Elliptical10 million ly
apartNGC 653Spiral12 million ly
apartNGC 687Lenticular12 million ly
apartNGC 703Elliptical13 million ly
apart
Worlds in the same direction on the sky→apartNGC 750Elliptical9.9 million ly
apartNGC 751Elliptical10 million ly
apartNGC 653Spiral12 million ly
apartNGC 687Lenticular12 million ly
apartNGC 703Elliptical13 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).