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Two Micron All-sky Survey

(near-infrared survey of both hemispheres)

The Two Micron All-sky Survey is a near-infrared survey of the entire sky by two telescopes, in Mt. Hopkins, Arizona and Cerro Tololo, Chile. The sky was imaged in three bands: J (1.25um), H (1.65um), and K(s)(2.17um), i.e., the JHK photometric system. Final data was released in 2003.

Targets included galaxies obscured by Milky Way light, brown dwarfs, low mass stars, and general cataloging.

(survey,infrared,NSF,galaxies,stars,all sky)
1.25μm240THz992meVbeginTwo Micron All-sky Survey
2.17μm138THz571meVendTwo Micron All-sky Survey
2M2M1207Two Micron All-sky Surveyabbreviated
2MA2MA 1835-3259Two Micron All-sky Surveyabbreviated
2MASP2MASP J0345432+254023Two Micron All-sky Surveyprototype survey: or "2MASSP"
2MASS2MASS J07200325-0846499Two Micron All-sky Survey 
2MASSI2MASSI J0937347+293142Two Micron All-sky Surveyincremental release
2MASSW2MASSW J0746425+200032Two Micron All-sky Surveyworking database
2MASX2MASX J00482185-2507365Two Micron All-sky Survey"Extended source catalogue"

Referenced by:
astronomical survey
Infrared Survey Facility (IRSF)
JHK photometric system (JHK)
TW Hydrae association (TWA)