NGC 7821
NGC 7821
Illustration from its catalogued shape, not a photograph
Spiral
type · SABc
346 million ly
from Earth · from redshift
115k ly
across
13.8
apparent magnitude
Because its light is 346 million ly from home, you are seeing NGC 7821 as it looked roughly 346 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 7807Barred spiral19 million ly
apartNGC 7759Lenticular24 million ly
apartNGC 73Spiral25 million ly
apartIC 1509Spiral27 million ly
apartNGC 7754Spiral28 million ly
apartNGC 7761Lenticular29 million ly
apart
Worlds in the same direction on the sky→apartNGC 7759Lenticular24 million ly
apartNGC 73Spiral25 million ly
apartIC 1509Spiral27 million ly
apartNGC 7754Spiral28 million ly
apartNGC 7761Lenticular29 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).