Eridanus Supervoid
Cosmic void · Region in space

About Eridanus Supervoid
The light we see from it set out 2.73 billion years ago, when the universe was 11.1 billion years old (redshift 0.22).
The map lists it as a cosmic void and shows it at the scale of the large-scale universe, drawn on the supergalactic plane.
Its distance or nature is debated, and the map shows one published value.
A huge underdensity in front of the CMB Cold Spot. How much of the Cold Spot it explains is debated.
Key numbers
| Distance (comoving, today) | 3.01 billion light-years (923 Mpc) |
|---|---|
| Redshift z | 0.22 |
| Light travel time | 2.73 billion years |
| Universe's age when this light left | 11.1 billion years |
| Distance method | redshift (Planck 2018 cosmology) |
| Supergalactic coordinates | SGL 283.6°, SGB -37.7° |
| 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 1.4 billion light-years across |
Where it is
Its place in the universe, from the inside out: Observable universe.
Zoom out to see it in context: Cosmic web, a view about 11 billion light-years across.
From Wikipedia
The CMB Cold Spot or WMAP Cold Spot is a region of the sky seen in microwaves that has been found to be unusually large and cold relative to the expected properties of the cosmic microwave background radiation (CMBR).
Excerpt from the Wikipedia article CMB cold spot, licensed CC BY-SA 4.0.
Nearby on the map
- Horologium–Reticulum Supercluster Supercluster
- Abell 370 Galaxy cluster
- KBC Void Cosmic void
- Sculptor Void Cosmic void
- South Pole Wall Large-scale structure
- Perseus–Pisces Supercluster Supercluster