CfA2 Great Wall
Large-scale structure · Immense galaxy filament
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 z | 0.025 |
| Light travel time | 0.355 billion years |
| Universe's age when this light left | 13.4 billion years |
| Distance method | redshift (Planck 2018 cosmology) |
| Supergalactic coordinates | SGL 88.6°, SGB +8.6° |
| On the map | The 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. |
| Size | about 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.
Nearby on the map
- Coma Cluster Galaxy cluster
- Coma Supercluster Supercluster
- Leo Cluster Galaxy cluster
- Leo Supercluster Supercluster
- M87 Galaxy
- Virgo Supercluster Supercluster