IC 75

IC 75

IC 75 is a barred spiral galaxy in the constellation Pisces about 572 million ly from Earth. It spans roughly 110,000 ly, about the width of our Milky Way. The light reaching us tonight left it about 572 million years ago.

Illustration from its catalogued shape, not a photograph

Barred spiral
type · Sb
572 million ly
from Earth · from redshift
110k ly
across
15.0
apparent magnitude

Because its light is 572 million ly from home, you are seeing IC 75 as it looked roughly 572 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 57Lenticular38 million ly
apart
IC 62Barred spiral39 million ly
apart
IC 53Elliptical46 million ly
apart
IC 1620Barred spiral49 million ly
apart
IC 1646Spiral59 million ly
apart
IC 61Lenticular63 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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