Scale insight
Scale Comparison
The Sun vs VY Canis Majoris, to scale
This is the comparison that pushes the Sun's familiar scale almost out of sight. Beside VY Canis Majoris, our star reads less like a standard of stellar size and more like a compact reference point for an unstable hypergiant envelope.
Shared physical scale
1.10billion km
VY Canis Majoris belongs to the class of stars that stop feeling like enlarged Suns and start feeling like unstable systems whose extended outer layers dominate the story. The power of the comparison is its sheer scale shock.
That is why caution matters here. The stars boundary is not as clean as it is for the Sun, but the comparison still does its job: it shows just how far stellar size can be pushed in the late lives of massive stars.
Objects
Open each object in context
The Sun is the star at the center of the Solar System and the engine behind every climate and orbit within it. It fuses about 600 million metric tons of hydrogen each second, while photons created in the core can take roughly 250,000 years to work their way to the visible surface.
VY Canis Majoris is an extreme red hypergiant wrapped in a dense, asymmetric cloud of its own ejecta. Its vast infrared glow and clumpy nebula show a star losing matter so violently that the surrounding outflow becomes part of the story.
Visual creditscaleofspace.org / CC BY-NC 4.0
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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.