NGC 638
NGC 638
Illustration from its catalogued shape, not a photograph
Elliptical
type · E?
155 million ly
from Earth · from redshift
42k ly
across
13.8
apparent magnitude
Because its light is 155 million ly from home, you are seeing NGC 638 as it looked roughly 155 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 645Barred spiral4.3 million ly
apartNGC 632Lenticular8.7 million ly
apartIC 1776Spiral18 million ly
apartNGC 827Barred spiral21 million ly
apartNGC 825Spiral21 million ly
apartNGC 781Spiral22 million ly
apart
Worlds in the same direction on the sky→apartNGC 632Lenticular8.7 million ly
apartIC 1776Spiral18 million ly
apartNGC 827Barred spiral21 million ly
apartNGC 825Spiral21 million ly
apartNGC 781Spiral22 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).