NGC 7603

NGC 7603

NGC 7603 is a barred spiral galaxy in the constellation Pisces about 454 million ly from Earth. It spans roughly 160,000 ly, about 1.6 times the width of our Milky Way. It is receding from us at about 8,851 km/s.

Illustration from its catalogued shape, not a photograph

Barred spiral
type · Sb
454 million ly
from Earth · from redshift
158k ly
across
14.0
apparent magnitude
8,851 km/s
receding (RC3)

Because its light is 454 million ly from home, you are seeing NGC 7603 as it looked roughly 454 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 5287Barred spiral19 million ly
apart
NGC 7629Lenticular31 million ly
apart
NGC 7589Spiral38 million ly
apart
NGC 7642Spiral39 million ly
apart
IC 1468Lenticular39 million ly
apart
IC 1466Spiral41 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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