Part of Scales of the Universe.

In the Rose Center for Earth and Space, a model of the star Vega, represented as smooth white sphere. AMNH/D. Finnin

If the Hayden Sphere is the size of the blue supergiant star Rigel, then this model is the relative size of Vega.

The bluish white star Vega is several times larger than the Sun, and about twenty-six light-years away.