IC 1666

IC 1666

IC 1666 is a spiral galaxy in the constellation Pisces about 228 million ly from Earth. It spans roughly 62,000 ly, about 62% of our Milky Way's width. It is receding from us at about 4,897 km/s.

Illustration from its catalogued shape, not a photograph

Spiral
type · Sc
228 million ly
from Earth · from redshift
62k ly
across
14.3
apparent magnitude
4,897 km/s
receding (RC3)

Because its light is 228 million ly from home, you are seeing IC 1666 as it looked roughly 228 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 451Spiral4.4 million ly
apart
NGC 507Elliptical4.9 million ly
apart
NGC 449Barred spiral5.3 million ly
apart
IC 1687Lenticular5.6 million ly
apart
NGC 501Elliptical6.1 million ly
apart
NGC 444Spiral6.7 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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