IRAC4 survey in Healpix survey collection

Composite map from Spitzer Legacy Programs GLIMPSE: Galactic Legacy Infrared Mid-Plane Survey Extraordinaire (Churchwell E. + Benjamin R.) C2D: From Molecular Cores to...本数据集为斯皮策遗产项目（Spitzer Legacy Programs）的合成巡天图谱，涵盖该项目下GLIMPSE（银河遗产红外银道面非凡巡天，Galactic Legacy Infrared Mid-Plane Survey Extraordinaire）与C2D（From Molecular Cores to...，从分子云核心至……）两个子项目的相关数据，相关研究由Churchwell E.与Benjamin R.完成。