NGC 173
NGC 173
Illustration from its catalogued shape, not a photograph
Spiral
type · Sc
205 million ly
from Earth · from redshift
125k ly
across
13.4
apparent magnitude
Because its light is 205 million ly from home, you are seeing NGC 173 as it looked roughly 205 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 201Spiral4.5 million ly
apartNGC 192Spiral5.0 million ly
apartNGC 170Elliptical5.4 million ly
apartNGC 197Lenticular7.5 million ly
apartNGC 193Elliptical7.8 million ly
apartNGC 130Elliptical7.8 million ly
apart
Worlds in the same direction on the sky→apartNGC 192Spiral5.0 million ly
apartNGC 170Elliptical5.4 million ly
apartNGC 197Lenticular7.5 million ly
apartNGC 193Elliptical7.8 million ly
apartNGC 130Elliptical7.8 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).