IC 2311

IC 2311

IC 2311 is an elliptical galaxy in the constellation Puppis about 86 million ly from Earth. It spans roughly 54,000 ly, about 54% of our Milky Way's width. It is receding from us at about 1,844 km/s.

Illustration from its catalogued shape, not a photograph

Elliptical
type · E
86 million ly
from Earth · from redshift
54k ly
across
11.5
apparent magnitude
1,844 km/s
receding (RC3)

Because its light is 86 million ly from home, you are seeing IC 2311 as it looked roughly 86 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 2613Barred spiral9.8 million ly
apart
NGC 2566Barred spiral10 million ly
apart
NGC 2665Spiral14 million ly
apart
NGC 2559Barred spiral14 million ly
apart
NGC 2380Lenticular19 million ly
apart
NGC 2758Barred spiral20 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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