NGC 3831
NGC 3831
Illustration from its catalogued shape, not a photograph
Lenticular
type · S0-a
245 million ly
from Earth · from redshift
163k ly
across
13.9
apparent magnitude
Because its light is 245 million ly from home, you are seeing NGC 3831 as it looked roughly 245 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 706Lenticular15 million ly
apartNGC 3707Elliptical15 million ly
apartNGC 3704Elliptical15 million ly
apartNGC 3974Lenticular17 million ly
apartNGC 3696Spiral18 million ly
apartNGC 3789Lenticular20 million ly
apart
Worlds in the same direction on the sky→apartNGC 3707Elliptical15 million ly
apartNGC 3704Elliptical15 million ly
apartNGC 3974Lenticular17 million ly
apartNGC 3696Spiral18 million ly
apartNGC 3789Lenticular20 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).