IC 3165

IC 3165

IC 3165 is a barred spiral galaxy in the constellation Coma Berenices about 389 million ly from Earth. It spans roughly 110,000 ly, about the width of our Milky Way. It is receding from us at about 8,443 km/s.

Illustration from its catalogued shape, not a photograph

Barred spiral
type · Sb
389 million ly
from Earth · from redshift
113k ly
across
14.8
apparent magnitude
8,443 km/s
receding (RC3)

Because its light is 389 million ly from home, you are seeing IC 3165 as it looked roughly 389 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 4295Lenticular6.4 million ly
apart
IC 3210Lenticular9.6 million ly
apart
NGC 4272Elliptical17 million ly
apart
IC 3402Barred spiral21 million ly
apart
NGC 4104Lenticular23 million ly
apart
IC 3243Barred spiral24 million ly
apart
Worlds in the same direction on the sky

Source: structural data (position, morphology, brightness, redshift) from OpenNGC (CC BY-SA). Recession velocity from RC3 (de Vaucouleurs et al. 1991, via NASA/HEASARC, public domain). Distance computed by gravityfinder from redshift via Hubble's law (H0 = 70 km/s/Mpc).

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