Redigerer 2MASS

[[File:2MASS J17111353+2326333.jpg|thumb|2MASS-bilde i J-band. Den [[brun dverg|brune dvergen]] [[2MASS J17111353+2326333]] er uthevet.]]
'''Two Micron All-Sky Survey''' ('''2MASS''') var en undersøkelse av hele himmelen i tre [[infrarød stråling|infrarøde]] bølgeband rundt 2&nbsp;mikrometer (μm): J (1.25 μm), H (1.65 μm), og K<sub>s</sub> (2.17 μm).<ref name="about"/> Observasjonene for undersøkelsene ble tatt mellom 1997 og 2001, ved Mt. Hopkins i [[Arizona]] for [[den nordlige halvkule]] og [[Cerro Tololo Inter-American Observatory]] i [[Chile]] for [[den sørlige halvkule]].<ref name="archive"/>

== Referanser ==
<references>
<ref name="about">{{cite web
  |date=2006-02-01 
  |title=About 2MASS (A Brief Explanation of 2MASS)
  |publisher=University of Massachusetts, Infrared Processing and Analysis Center (JPL/ Caltech), NASA, NSF
  |url=http://www.ipac.caltech.edu/2mass/overview/about2mass.html
  |accessdate=2008-09-21}}</ref>

<ref name="archive">{{cite web
  |title=Two Micron All Sky Survey (2MASS)
  |publisher=NASA/IPAC Infrared Science Archive
  |url=http://irsa.ipac.caltech.edu/Missions/2mass.html
  |accessdate=2011-10-22}}</ref>
</references>

== Eksterne lenker ==
{{Portal3|Astronomi}}
* [http://www.ipac.caltech.edu/2mass/ 2MASS at IPAC]
* [https://web.archive.org/web/20080509165743/http://pegasus.astro.umass.edu/ 2MASS at UMass]
* [http://www.ipac.caltech.edu/2mass/gallery/images_misc.html 2MASS Atlas Image Gallery: Miscellaneous Objects]
* [http://www.ipac.caltech.edu/2mass/overview/dwarfs.html Low-Mass Stars and Brown Dwarfs in 2MASS]
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