does it emit x-rays?
Yes, very strong X-ray emission
Comet Hyakutake
very strong X-ray emission
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 do you know how close to the sun does it orbit? Approximately 2 astronomical units (AU) is there is a term for it? UNANSWERABLE did a spacecraft pass through its tail? Ulysses spacecraft when? 1 May 1996 was it manned or unmanned? UNANSWERABLE what is the comet made up of? Ethane, methane, deuterium, hydrogen, water
wiki:1220045
Comet Hyakutake [SEP] X-ray emission
One of the great surprises of Hyakutake's passage through the inner Solar System was the discovery that it was emitting X-rays, with observations made using the "ROSAT" satellite revealing very strong X-ray emission. This was the first time a comet had been seen to do so, but astronomers soon found that almost every comet they looked at was emitting X-rays. The emission from Hyakutake was brightest in a crescent shape surrounding the nucleus with the ends of the crescent pointing away from the Sun. The cause of the X-ray emission is thought to be a combination of two mechanisms. Interactions between energetic solar wind particles and cometary material evaporating from the nucleus is likely to contribute significantly to this effect.