IC 1933

IC 1933

IC 1933 is a spiral galaxy in the constellation Horologium about 49 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 1,033 km/s.

Illustration from its catalogued shape, not a photograph

Spiral
type · Sc
49 million ly
from Earth · from redshift
33k ly
across
12.6
apparent magnitude
1,033 km/s
receding (RC3)

Because its light is 49 million ly from home, you are seeing IC 1933 as it looked roughly 49 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 1954Barred spiral1.2 million ly
apart
NGC 1249Barred spiral2.3 million ly
apart
IC 1914Spiral3.1 million ly
apart
IC 1896Spiral3.4 million ly
apart
IC 2004Lenticular5.0 million ly
apart
NGC 1433Barred spiral5.4 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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