# Is the biggest star in the universe as big as an atom is small?

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PlanksandNailsposted 10 years ago

Is the biggest star in the universe as big as an atom is small?

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Julz09posted 10 years ago

good question! one would wonder how large the universe is, maybe it could be smaller then a atom.

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BoutteJposted 10 years ago

The volume of a single hydrogen atom is:

V = (4/3)pi*(25 x 10^-12)^3 =6.545E-32 m^3

The volume of the largest known star is VY Canis Majoris

V = 2100 * (6.955 x 10^8)^3 = 1.30508E+37 m^3

Hydrogen was used since stars are composed of mainly hydrogen.

As you can see they are close, but the largest known star is bigger than an atom is small.

4. 59

that is a good question but no it is not shown in science books or wikpidia that the stars ar as small as an atom instead they are planets. I hope this helps.

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calculus-geometryposted 9 years ago

Interesting question, but it it depends on the scale of measurement you are using.  For instance, if I take 20 cm  to be the base unit of measure, then I could say that my vacuum cleaner is as big as a lightbulb is small.  But if I take the base measurement to be 1 mm, the above sentence is no longer true, since both objects are huge compared to the base.

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