2MASS photometry of galactic planetary nebulae

The recently published 2MASS all-sky infrared survey () includes JHKs photometry of over 300 million sources. It also provides sizes and aspect ratios for the ~0.55 per cent of...近日发布的2微米全天红外巡天（2MASS）数据集包含了超过3亿个天体的JHKs测光数据，同时还为约0.55%的……提供了天体尺寸与轴比参数。