NGC 644
NGC 644
Illustration from its catalogued shape, not a photograph
Barred spiral
type · SBc
290 million ly
from Earth · from redshift
110k ly
across
14.7
apparent magnitude
Because its light is 290 million ly from home, you are seeing NGC 644 as it looked roughly 290 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 641Elliptical4.9 million ly
apartNGC 630Elliptical19 million ly
apartNGC 482Spiral26 million ly
apartNGC 549Barred spiral27 million ly
apartNGC 544Elliptical28 million ly
apartNGC 626Spiral28 million ly
apart
Worlds in the same direction on the sky→apartNGC 630Elliptical19 million ly
apartNGC 482Spiral26 million ly
apartNGC 549Barred spiral27 million ly
apartNGC 544Elliptical28 million ly
apartNGC 626Spiral28 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).