2MASS All-Sky Extended Source Catalog

2MASS has uniformly scanned the entire sky in three near-infrared bands to detect and characterize point sources brighter than about 1 mJy in each band, with signal-to-noise...2微米全天巡天（Two Micron All-Sky Survey，2MASS）已在三个近红外波段对全天空开展均匀巡天观测，旨在探测并表征各波段中亮度高于约1毫央斯基（mJy）的点源，其信噪比……