NGC 3644
NGC 3644
Illustration from its catalogued shape, not a photograph
Spiral
type · Sa
333 million ly
from Earth · from redshift
138k ly
across
15.0
apparent magnitude
Because its light is 333 million ly from home, you are seeing NGC 3644 as it looked roughly 333 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 3580Lenticular22 million ly
apartNGC 3535Spiral24 million ly
apartNGC 3716Lenticular28 million ly
apartNGC 3509Barred spiral38 million ly
apartNGC 3567Lenticular44 million ly
apartNGC 3601Barred spiral44 million ly
apart
Worlds in the same direction on the sky→apartNGC 3535Spiral24 million ly
apartNGC 3716Lenticular28 million ly
apartNGC 3509Barred spiral38 million ly
apartNGC 3567Lenticular44 million ly
apartNGC 3601Barred spiral44 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).