IC 1181

IC 1181

IC 1181 is a lenticular galaxy in the constellation Hercules about 475 million ly from Earth. It spans roughly 140,000 ly, about the width of our Milky Way. It is receding from us at about 10,531 km/s.

Illustration from its catalogued shape, not a photograph

Lenticular
type · S0-a
475 million ly
from Earth · from redshift
139k ly
across
14.8
apparent magnitude
10,531 km/s
receding (RC3)

Because its light is 475 million ly from home, you are seeing IC 1181 as it looked roughly 475 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 1182Lenticular2.0 million ly
apart
NGC 6054Elliptical2.2 million ly
apart
IC 1178Elliptical2.8 million ly
apart
NGC 6034Elliptical5.2 million ly
apart
NGC 6045Spiral8.0 million ly
apart
NGC 6044Lenticular11 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).

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