NGC 4921
NGC 4921
Illustration from its catalogued shape, not a photograph
Spiral
type · Sab
255 million ly
from Earth · from redshift
145k ly
across
12.6
apparent magnitude
Because its light is 255 million ly from home, you are seeing NGC 4921 as it looked roughly 255 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 4923Elliptical460,000 ly
apartNGC 4931Lenticular4.6 million ly
apartNGC 4943Lenticular7.7 million ly
apartIC 3947Lenticular8.9 million ly
apartNGC 5000Barred spiral11 million ly
apartIC 4021Elliptical12 million ly
apart
Worlds in the same direction on the sky→apartNGC 4931Lenticular4.6 million ly
apartNGC 4943Lenticular7.7 million ly
apartIC 3947Lenticular8.9 million ly
apartNGC 5000Barred spiral11 million ly
apartIC 4021Elliptical12 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).