IC 3156
IC 3156
Illustration from its catalogued shape, not a photograph
Barred spiral
type · SBcd
275 million ly
from Earth · from redshift
58k ly
across
14.7
apparent magnitude
Because its light is 275 million ly from home, you are seeing IC 3156 as it looked roughly 275 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 3175Barred spiral3.7 million ly
apartNGC 4307ASpiral4.5 million ly
apartIC 3069Spiral7.4 million ly
apartIC 3188Spiral9.0 million ly
apartIC 3060Spiral18 million ly
apartIC 3013Spiral18 million ly
apart
Worlds in the same direction on the sky→apartNGC 4307ASpiral4.5 million ly
apartIC 3069Spiral7.4 million ly
apartIC 3188Spiral9.0 million ly
apartIC 3060Spiral18 million ly
apartIC 3013Spiral18 million ly
apart
Source: structural data (position, morphology, brightness, redshift) from OpenNGC (CC BY-SA). Distance computed by gravityfinder from redshift via Hubble's law (H0 = 70 km/s/Mpc).