IC 247

IC 247

IC 247 is a barred spiral galaxy in the constellation Cetus about 394 million ly from Earth. It spans roughly 100,000 ly, about the width of our Milky Way. The light reaching us tonight left it about 394 million years ago.

Illustration from its catalogued shape, not a photograph

Barred spiral
type · SBbc
394 million ly
from Earth · from redshift
101k ly
across
14.7
apparent magnitude

Because its light is 394 million ly from home, you are seeing IC 247 as it looked roughly 394 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 1013Lenticular5.8 million ly
apart
NGC 1017Irregular13 million ly
apart
NGC 1120Elliptical24 million ly
apart
NGC 1078Elliptical29 million ly
apart
NGC 1089Elliptical30 million ly
apart
IC 269Lenticular30 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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