do you know how close to the sun does it orbit?
Approximately 2 astronomical units (AU)
Comet Hyakutake
 2 astronomical units (AU) 
what is comet hyakutake? It is a comet. who discovered it? Yuji Hyakutake what is its orbit? It passes just 0.1 AU from Earth. when was it discovered? 30 January 1996
wiki:1220033
Comet Hyakutake [SEP] Discovery
Hardly believing a second discovery so soon after the first, Hyakutake reported his observation to the National Astronomical Observatory of Japan the following morning. Later that day, the discovery was confirmed by independent observations. At the time of its discovery, the comet was shining at magnitude 11.0 and had a coma approximately 2.5 arcminutes across. It was approximately 2 astronomical units (AU) from the Sun. Later, a precovery image of the comet was found on a photograph taken on January 1, when the comet was about 2.4 AU from the Sun and had a magnitude of 13.3.