IC 2024

IC 2024

IC 2024 is a barred spiral galaxy in the constellation Reticulum about 545 million ly from Earth. It spans roughly 170,000 ly, about 1.7 times the width of our Milky Way. The light reaching us tonight left it about 545 million years ago.

Illustration from its catalogued shape, not a photograph

Barred spiral
type · SBc
545 million ly
from Earth · from redshift
174k ly
across
15.6
apparent magnitude

Because its light is 545 million ly from home, you are seeing IC 2024 as it looked roughly 545 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 2043Barred spiral16 million ly
apart
NGC 1506Elliptical17 million ly
apart
IC 1991Spiral29 million ly
apart
IC 2033Spiral36 million ly
apart
IC 2050Barred spiral37 million ly
apart
IC 2066Barred spiral38 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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