IC 1597

IC 1597

IC 1597 is a barred spiral galaxy in the constellation Tucana about 235 million ly from Earth. It spans roughly 110,000 ly, about the width of our Milky Way. It is receding from us at about 5,053 km/s.

Illustration from its catalogued shape, not a photograph

Barred spiral
type · SBb
235 million ly
from Earth · from redshift
110k ly
across
15.0
apparent magnitude
5,053 km/s
receding (RC3)

Because its light is 235 million ly from home, you are seeing IC 1597 as it looked roughly 235 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 440Barred spiral10 million ly
apart
NGC 434Spiral14 million ly
apart
NGC 484Elliptical15 million ly
apart
NGC 466Lenticular16 million ly
apart
NGC 434ALenticular17 million ly
apart
IC 1649Barred spiral19 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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