IC 3945
IC 3945
Illustration from its catalogued shape, not a photograph
Spiral
type · Sc
503 million ly
from Earth · from redshift
72k ly
across
16.1
apparent magnitude
Because its light is 503 million ly from home, you are seeing IC 3945 as it looked roughly 503 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 4062Spiral4.8 million ly
apartIC 4064Lenticular8.1 million ly
apartIC 4085Elliptical9.6 million ly
apartIC 4004Elliptical10 million ly
apartIC 4065Barred spiral14 million ly
apartIC 4056Barred spiral14 million ly
apart
Worlds in the same direction on the sky→apartIC 4064Lenticular8.1 million ly
apartIC 4085Elliptical9.6 million ly
apartIC 4004Elliptical10 million ly
apartIC 4065Barred spiral14 million ly
apartIC 4056Barred spiral14 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).