2MASS
ASTRONOMICAL SURVEY
Two Micron All Sky Survey; Two-Micron All Sky Survey; Two Micron All-Sky Survey; 2 Micron All Sky Survey; VizieR On-line Data Catalog: II/246. Originally published in: 2003yCat.2246....0C; 2003yCat.2246....0C; 2MASX; VizieR On-line Data Catalog: II/246; 2MASSI; 2MASSW; VizieR On-line Data Catalog: II/246. Originally Published In: 2003yCat.2246....0C; VizieR On-line Data Catalog: II/246. Originally Published in: 2003yCat.2246....0C; VizieR On-line Data Catalog: II/246. Originally Published in: University of Massachusetts and Infrared Processing and Analysis Center; VizieR On-line Data Catalog: II/246. Originally published in: University of Massachusetts and Infrared Processing and Analysis Center
The Two Micron All-Sky Survey, or 2MASS, was an astronomical survey of the whole sky in infrared light. It took place between 1997 and 2001, in two different locations: at the U.