NGC 4821
NGC 4821
Illustration from its catalogued shape, not a photograph
Elliptical
type · E
328 million ly
from Earth · from redshift
56k ly
across
15.0
apparent magnitude
Because its light is 328 million ly from home, you are seeing NGC 4821 as it looked roughly 328 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 3900Lenticular2.9 million ly
apartIC 832Elliptical4.6 million ly
apartNGC 4807Elliptical4.7 million ly
apartIC 3959Elliptical5.9 million ly
apartNGC 4859Lenticular6.1 million ly
apartNGC 4816Elliptical7.4 million ly
apart
Worlds in the same direction on the sky→apartIC 832Elliptical4.6 million ly
apartNGC 4807Elliptical4.7 million ly
apartIC 3959Elliptical5.9 million ly
apartNGC 4859Lenticular6.1 million ly
apartNGC 4816Elliptical7.4 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).