IC 1989

IC 1989

IC 1989 is an elliptical galaxy in the constellation Horologium about 520 million ly from Earth. It spans roughly 210,000 ly, about 2.1 times the width of our Milky Way. It is receding from us at about 11,142 km/s.

Illustration from its catalogued shape, not a photograph

Elliptical
type · E-S0
520 million ly
from Earth · from redshift
207k ly
across
14.6
apparent magnitude
11,142 km/s
receding (RC3)

Because its light is 520 million ly from home, you are seeing IC 1989 as it looked roughly 520 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 1968Spiral14 million ly
apart
IC 1991Spiral17 million ly
apart
IC 1950Spiral21 million ly
apart
IC 1958Spiral21 million ly
apart
IC 1947Spiral25 million ly
apart
IC 1973Galaxy26 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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