IC 1055

IC 1055

IC 1055 is a barred spiral galaxy in the constellation Libra about 136 million ly from Earth. It spans roughly 90,000 ly, about the width of our Milky Way. The light reaching us tonight left it about 136 million years ago.

Illustration from its catalogued shape, not a photograph

Barred spiral
type · Sb
136 million ly
from Earth · from redshift
90k ly
across
13.1
apparent magnitude

Because its light is 136 million ly from home, you are seeing IC 1055 as it looked roughly 136 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 5809Lenticular8.8 million ly
apart
NGC 5728Spiral9.7 million ly
apart
IC 4476Lenticular9.9 million ly
apart
NGC 5796Elliptical10 million ly
apart
NGC 5815Barred spiral11 million ly
apart
NGC 5757Barred spiral15 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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