About 2MASS (A Brief Explanation of 2MASS). University of Massachusetts, Infrared Processing and Analysis Center (JPL/ Caltech), NASA, NSF. 2006-02-01 [2008-09-21]. (原始内容存档于2018-09-08).
2MASS Data Access. The Two Micron All Sky Survey at IPAC. December 20, 2006 [September 2, 2012]. (原始内容存档于2018-01-14).
2MASS Science Publications. The Two Micron All Sky Survey at IPAC. February 1, 2006 [September 2, 2012]. (原始内容存档于2010-06-12).
About 2MASS (A Brief Explanation of 2MASS). University of Massachusetts, Infrared Processing and Analysis Center (JPL/ Caltech), NASA, NSF. 2006-02-01 [2008-09-21]. (原始内容存档于2018-09-08).