Assertion: comet's nucleus | /r/HasProperty | up to 5 km
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text: Astronomers estimated that the visible fragments of SL9 ranged in size from a few hundred metres (around 1,000 ft) to two kilometres (1.2 mi) across, suggesting that the original comet may have had a nucleus up to 5 km (3.1 mi) across—somewhat larger than Comet Hyakutake, which became very bright when it passed close to the Earth in 1996.