Scale Comparison

The Large Magellanic Cloud vs the Small Magellanic Cloud, to scale

The Magellanic Clouds are often named as a pair, but true scale shows that the pairing is not symmetrical. They share the same neighborhood and interaction history while still differing clearly in overall galactic extent.

Shared physical scale
17,940ly

Scale insight

The Large Magellanic Cloud is about 1.7 times wider than the Small Magellanic Cloud.

The Magellanic Clouds so often arrive as one conceptual unit that their size gap can get flattened in the imagination. In reality they are two distinct dwarf galaxies with different scales, structures and star-forming histories, even while interacting with each other and the Milky Way.

Seeing them together helps restore their individuality. The pair belongs to one local story, but not to one repeated galactic template.

Objects

Open each object in context

Galaxies

Small Magellanic Cloud

18,892 lydiameter

The Small Magellanic Cloud is a nearby dwarf galaxy and one of the Milky Way’s closest galactic companions. Its modest size, distorted shape, and active star-forming regions make it an important laboratory for studying how small galaxies evolve under the gravitational influence of larger neighbors.

Object class
Dwarf irregular galaxy
Host
Local Group
Composition
~3 billion stars, gas, dust, dark matter
Visual creditESA / NASA / NASA-JPL / Caltech / Christopher Clark (STScI) / S. Stanimirovic (UW-Madison) / N. Mizuno (Nagoya University) / Public domainSource: Wikimedia Commons
Galaxies

Large Magellanic Cloud

32,200 lydiameter

The Large Magellanic Cloud is a nearby satellite galaxy laced with vast star-forming regions and supernova debris. It contains the Tarantula Nebula, the most productive stellar nursery in the Local Group, and it hosted SN 1987A, the closest observed supernova since 1604.

Object class
Dwarf irregular galaxy
Host
Local Group
Composition
~20 billion stars, gas, dust, dark matter
Visual creditESA / NASA / NASA-JPL / Caltech / Christopher Clark (STScI) / S. Kim (Sejong University) / T. Wong (UIUC) / Public domainSource: Wikimedia Commons

Between the smallest and the largest, perspective is everything.

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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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