Local superclusters region

Details

This map shows the large-scale cosmic neighborhood within a radius of 500 million light-years around the Milky Way. Instead of a single object, it represents the nearby network of galaxy superclusters, filaments, and voids that make up our local portion of the cosmic web.

This record is not a single cosmic object. It is a map of the large-scale neighborhood around the Milky Way, a way of showing how nearby superclusters, filaments, and voids fit together inside one shared region of the cosmic web. That shift matters. At this scale, astronomy stops feeling like a catalog of isolated objects and starts looking more like geography.

What makes this map valuable is that it turns abstract large-scale structure into something navigable. Instead of seeing one cluster or one supercluster in isolation, you begin to see patterns: denser strands of galaxies, emptier voids, and the connected architecture that links major structures together. The point is not that this region is a single body with a clean edge. The point is that our local universe has shape.

That is why the local superclusters region matters. It gives context that individual objects cannot provide on their own. By treating the nearby universe as a mapped neighborhood rather than a disconnected list, it helps users see how cosmic structure becomes legible only when many large pieces are viewed together.

371million ly
Visual creditBased on work by Richard Powell / CC BY-SA 2.5Source: Wikimedia Commons

Key facts

Category
Large-scale structures
Object class
Large-scale cosmic neighborhood
Scale fact
1 billion lydiameter of mapped region
Composition
Galaxy superclusters, filaments, voids, galaxies, dark matter, intergalactic gas

Scale context

Where Local superclusters region sits on the full axis

By size on the journey, Local superclusters region sits between BOSS Great Wall and Expanded local superclusters region. The band below compares Local superclusters region with nearby Large-scale cosmic neighborhood objects so the size jump stays easy to read.

Shared physical scale
1.30billion ly

Together, these objects make the size change around Local superclusters region easy to compare at a glance.

Between the smallest and the largest, perspective is everything.

About

Scale of Space is a scroll-based journey through the universe, placing objects on a single logarithmic scale so you can compare size across an unbroken range.

Guides turn parts of that scale into curated essays, while focused views let you explore the same range through specific groups of objects.

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