IC 1723
IC 1723
Illustration from its catalogued shape, not a photograph
Barred spiral
type · Sb
257 million ly
from Earth · from redshift
183k ly
across
14.1
apparent magnitude
Because its light is 257 million ly from home, you are seeing IC 1723 as it looked roughly 257 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 665Lenticular8.3 million ly
apartIC 154Barred spiral8.4 million ly
apartIC 156Spiral10 million ly
apartIC 161Lenticular11 million ly
apartNGC 652Spiral12 million ly
apartNGC 631Elliptical17 million ly
apart
Worlds in the same direction on the sky→apartIC 154Barred spiral8.4 million ly
apartIC 156Spiral10 million ly
apartIC 161Lenticular11 million ly
apartNGC 652Spiral12 million ly
apartNGC 631Elliptical17 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).