Assertion: asteroid belt's object | /r/CapableOf | measure less than 1,300 to 1,500 km
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text: Indeed, if all asteroids down to the size of meter- or yard-sized boulders or less were combined together, the resulting object would measure less than 1,300 to 1,500 km (810 to 930 miles) across, which is less than one third to one half the diameter of the Earth's Moon.