View source for Two-Micron Sky Survey

{{distinguish|2MASS|Infrared compact catalogue}}
'''Two-Micron Sky Survey''', or '''IRC''', or '''Caltech infrared catalog''' is the astronomical catalogue of the infrared sources published in the 1969 by [[Gerry Neugebauer]] and [[Robert B. Leighton]].
Catalogue index consists of two numbers - [[declination]] rounded to multiplier of 10 degrees, with [[Plus and minus signs|sign]], and star ordinal number within [[declination]] band. Catalog contains about 5000 objects between declinations +15 and -15 degrees. Most of the sources are [[M-type_star#Class_M|M-type]] stars.<ref name=tmss/> A supplement was also published with further data on 831 sources.<ref name=tmss2/>
==References==
{{reflist|refs=
<ref name=tmss>{{cite journal|bibcode=1969tmss.book.....N|title=Two-micron sky survey. A preliminary catalogue|journal=Nasa Sp|author1=Neugebauer|first1=G.|last2=Leighton|first2=R. B.|year=1969}}</ref>
<ref name=tmss2>{{cite journal|bibcode=1975AJ.....80.1011H|title=Classification of 831 Two-Micron Sky Survey|journal=Astronomical Journal|volume=80|pages=1011|author1=Hansen|first1=O. L.|last2=Blanco|first2=V. M.|year=1975|doi=10.1086/111833|doi-access=free}}</ref>
}}
==External links==
*[http://vizier.cfa.harvard.edu/viz-bin/VizieR?-source=II/2B Online catalogue] at [[VizieR]]
[[Category:Astronomical catalogues]]
{{astronomical-catalogue-stub}}