利用专用于天文图像和数据处理的软件包IRAF,对2007年1月23日利用国家天文台2.16m望远镜获取的光谱数据进行了处理,所得到的3C273的光谱和红移值与公认值一致。
Using IRAF to process the images which gained with 2.16m optical telescope at the Xinglong Site, which belongs to National Astronomical Observatories, Chinese Academy of Science (NAOC) on January 23, 2007, we gain the spectrum and redshift of 3C 273, which consistent with the result from NED.