IC 4992

IC 4992

IC 4992 is a barred spiral galaxy in the constellation Pavo about 196 million ly from Earth. It spans roughly 98,000 ly, about the width of our Milky Way. It is receding from us at about 4,173 km/s.

Illustration from its catalogued shape, not a photograph

Barred spiral
type · SBc
196 million ly
from Earth · from redshift
98k ly
across
14.5
apparent magnitude
4,173 km/s
receding (RC3)

Because its light is 196 million ly from home, you are seeing IC 4992 as it looked roughly 196 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 4929Barred spiral4.6 million ly
apart
NGC 6876ABarred spiral5.8 million ly
apart
IC 5053Spiral8.4 million ly
apart
IC 4899Barred spiral9.0 million ly
apart
IC 5060Spiral9.0 million ly
apart
IC 5054Barred spiral9.5 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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