IC 1811

IC 1811

IC 1811 is a barred spiral galaxy in the constellation Fornax about 225 million ly from Earth. It spans roughly 75,000 ly, about 75% of our Milky Way's width. It is receding from us at about 4,791 km/s.

Illustration from its catalogued shape, not a photograph

Barred spiral
type · SBab
225 million ly
from Earth · from redshift
75k ly
across
14.4
apparent magnitude
4,791 km/s
receding (RC3)

Because its light is 225 million ly from home, you are seeing IC 1811 as it looked roughly 225 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 964Spiral7.0 million ly
apart
NGC 897Spiral8.1 million ly
apart
IC 1813Lenticular14 million ly
apart
IC 1816Barred spiral17 million ly
apart
IC 1864Elliptical24 million ly
apart
NGC 1165Barred spiral25 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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