POSITION OBSERVATIONS OF THE COMET HYAKUTAKE

摘要

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