IC 1554

IC 1554

IC 1554 is a lenticular galaxy in the constellation Sculptor about 81 million ly from Earth. It spans roughly 33,000 ly, about 33% of our Milky Way's width. It is receding from us at about 1,776 km/s.

Illustration from its catalogued shape, not a photograph

Lenticular
type · S0-a
81 million ly
from Earth · from redshift
33k ly
across
13.8
apparent magnitude
1,776 km/s
receding (RC3)

Because its light is 81 million ly from home, you are seeing IC 1554 as it looked roughly 81 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 148Lenticular2.6 million ly
apart
NGC 115Barred spiral5.1 million ly
apart
NGC 134Spiral7.1 million ly
apart
NGC 289Barred spiral7.8 million ly
apart
NGC 254Lenticular9.0 million ly
apart
IC 1555Spiral9.4 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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