Position Observations of Comet Hyakutake

On March 16 of 1996, we used a new developed 1024×1024 CCD camera at tached to the 1 meter telescope at Yunnan Observa tory, to take photometric observations for the Comet Hyakutake. The positions have been measured accurately. Our result clearly states that even a new ephemeris of the Comet Hyakutake just given by EMPC on February 29 of 1996 still has obvious larger systematical deviation with our observ ations. From images observed, we can clearly see that the cometary coma is very larg eand basicly symmetric with a peach shape. It means that there is material flowing along the cometary tail which opposited the solar direction.