IC 123

IC 123

IC 123 is an elliptical galaxy in the constellation Cetus about 424 million ly from Earth. It spans roughly 83,000 ly, about 83% of our Milky Way's width. It is receding from us at about 9,179 km/s.

Illustration from its catalogued shape, not a photograph

Elliptical
type · E
424 million ly
from Earth · from redshift
83k ly
across
15.2
apparent magnitude
9,179 km/s
receding (RC3)

Because its light is 424 million ly from home, you are seeing IC 123 as it looked roughly 424 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 121Barred spiral4.0 million ly
apart
IC 103Elliptical24 million ly
apart
IC 1697Lenticular29 million ly
apart
IC 109Lenticular31 million ly
apart
IC 105Lenticular32 million ly
apart
NGC 497Barred spiral52 million ly
apart
Worlds in the same direction on the sky

Source: structural data (position, morphology, brightness, redshift) from OpenNGC (CC BY-SA). Recession velocity from RC3 (de Vaucouleurs et al. 1991, via NASA/HEASARC, public domain). Distance computed by gravityfinder from redshift via Hubble's law (H0 = 70 km/s/Mpc).

← all galaxies