IC 1788

IC 1788

IC 1788 is a barred spiral galaxy in the constellation Fornax about 165 million ly from Earth. It spans roughly 120,000 ly, about the width of our Milky Way. It is receding from us at about 3,358 km/s.

Illustration from its catalogued shape, not a photograph

Barred spiral
type · SBbc
165 million ly
from Earth · from redshift
121k ly
across
12.4
apparent magnitude
3,358 km/s
receding (RC3)

Because its light is 165 million ly from home, you are seeing IC 1788 as it looked roughly 165 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 857Lenticular6.9 million ly
apart
IC 1783Barred spiral11 million ly
apart
IC 1759Barred spiral22 million ly
apart
IC 1724Lenticular26 million ly
apart
NGC 922Barred spiral28 million ly
apart
IC 1722Spiral35 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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