IC 638
IC 638
Illustration from its catalogued shape, not a photograph
Spiral
type · Sab
553 million ly
from Earth · from redshift
124k ly
across
15.5
apparent magnitude
Because its light is 553 million ly from home, you are seeing IC 638 as it looked roughly 553 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 3461Barred spiral45 million ly
apartIC 648Barred spiral67 million ly
apartNGC 3492 NED02Elliptical69 million ly
apartNGC 3492 NED01Elliptical72 million ly
apartIC 666Lenticular77 million ly
apartIC 663Elliptical80 million ly
apart
Worlds in the same direction on the sky→apartIC 648Barred spiral67 million ly
apartNGC 3492 NED02Elliptical69 million ly
apartNGC 3492 NED01Elliptical72 million ly
apartIC 666Lenticular77 million ly
apartIC 663Elliptical80 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).