NGC 1721
NGC 1721
Illustration from its catalogued shape, not a photograph
Lenticular
type · S0
208 million ly
from Earth · from redshift
96k ly
across
13.8
apparent magnitude
Because its light is 208 million ly from home, you are seeing NGC 1721 as it looked roughly 208 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 1797Barred spiral14 million ly
apartNGC 1799Lenticular14 million ly
apartNGC 1720Barred spiral17 million ly
apartIC 2101Barred spiral20 million ly
apartNGC 1667Spiral20 million ly
apartNGC 1648Lenticular21 million ly
apart
Worlds in the same direction on the sky→apartNGC 1799Lenticular14 million ly
apartNGC 1720Barred spiral17 million ly
apartIC 2101Barred spiral20 million ly
apartNGC 1667Spiral20 million ly
apartNGC 1648Lenticular21 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).