NGC 3646
NGC 3646
Illustration from its catalogued shape, not a photograph
Spiral
type · Sc
198 million ly
from Earth · from redshift
178k ly
across
11.2
apparent magnitude
Because its light is 198 million ly from home, you are seeing NGC 3646 as it looked roughly 198 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 3649Barred spiral2.6 million ly
apartNGC 3650Barred spiral7.8 million ly
apartIC 2779Spiral24 million ly
apartIC 2762Spiral26 million ly
apartNGC 3983Lenticular30 million ly
apartNGC 3999Elliptical33 million ly
apart
Worlds in the same direction on the sky→apartNGC 3650Barred spiral7.8 million ly
apartIC 2779Spiral24 million ly
apartIC 2762Spiral26 million ly
apartNGC 3983Lenticular30 million ly
apartNGC 3999Elliptical33 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).