IC 3990
IC 3990
Illustration from its catalogued shape, not a photograph
Spiral
type · Sa
285 million ly
from Earth · from redshift
72k ly
across
14.0
apparent magnitude
Because its light is 285 million ly from home, you are seeing IC 3990 as it looked roughly 285 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
IC 3991Elliptical4.2 million ly
apartIC 3968Elliptical4.7 million ly
apartNGC 4934Lenticular5.9 million ly
apartNGC 4850Lenticular6.7 million ly
apartNGC 4841BElliptical7.4 million ly
apartNGC 4929Elliptical7.5 million ly
apart
Worlds in the same direction on the sky→apartIC 3968Elliptical4.7 million ly
apartNGC 4934Lenticular5.9 million ly
apartNGC 4850Lenticular6.7 million ly
apartNGC 4841BElliptical7.4 million ly
apartNGC 4929Elliptical7.5 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).