IC 664

IC 664

IC 664 is an elliptical galaxy in the constellation Leo about 473 million ly from Earth. It spans roughly 260,000 ly, about 2.6 times the width of our Milky Way. It is receding from us at about 10,127 km/s.

Illustration from its catalogued shape, not a photograph

Elliptical
type · E-S0
473 million ly
from Earth · from redshift
257k ly
across
14.7
apparent magnitude
10,127 km/s
receding (RC3)

Because its light is 473 million ly from home, you are seeing IC 664 as it looked roughly 473 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 3476Elliptical14 million ly
apart
NGC 3477Lenticular14 million ly
apart
NGC 3466Barred spiral16 million ly
apart
IC 658Elliptical23 million ly
apart
NGC 3490Elliptical26 million ly
apart
IC 663Elliptical32 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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