IC 5156

IC 5156

IC 5156 is a barred spiral galaxy in the constellation Piscis Austrinus about 127 million ly from Earth. It spans roughly 84,000 ly, about 84% of our Milky Way's width. It is receding from us at about 2,667 km/s.

Illustration from its catalogued shape, not a photograph

Barred spiral
type · SBab
127 million ly
from Earth · from redshift
84k ly
across
12.2
apparent magnitude
2,667 km/s
receding (RC3)

Because its light is 127 million ly from home, you are seeing IC 5156 as it looked roughly 127 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 7187Lenticular3.7 million ly
apart
NGC 7173Elliptical4.3 million ly
apart
NGC 7174Barred spiral5.0 million ly
apart
NGC 7154Irregular6.4 million ly
apart
NGC 7163Spiral6.7 million ly
apart
NGC 7172Spiral8.1 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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