Map of the Universe

CfA2 Great Wall

Large-scale structure · Immense galaxy filament

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About CfA2 Great Wall

The light we see from it set out 0.355 billion years ago, when the universe was 13.4 billion years old (redshift 0.025).

The map lists it as a large-scale structure and shows it at the scale of the large-scale universe, drawn on the supergalactic plane.

A sheet of galaxies about 500 by 300 million light-years, found in the 1989 CfA redshift survey.

Key numbers

Distance (comoving, today)0.359 billion light-years (110 Mpc)
Redshift z0.025
Light travel time0.355 billion years
Universe's age when this light left13.4 billion years
Distance methodredshift (Planck 2018 cosmology)
Supergalactic coordinatesSGL 88.6°, SGB +8.6°
On the mapThe dashed circle marks its approximate size around its centre. Structures this large have no sharp edge, and the circle is not drawn to an exact shape.
Sizeabout 489 million light-years across

Where it is

Its place in the universe, from the inside out: Observable universe.

Zoom out to see it in context: Nearby superclusters, a view about 2.3 billion light-years across.

From Wikipedia

The Great Wall, sometimes specifically referred to as the CfA2 Great Wall, is an immense galaxy filament. It is one of the largest known superstructures in the observable universe.

Excerpt from the Wikipedia article CfA2 Great Wall, licensed CC BY-SA 4.0.

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