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The Two Micron All-Sky Survey, or 2MASS, was an astronomical survey of the whole sky in the infrared spectrum and one of the most ambitious such projects. [1]

37 relations: Apparent magnitude, Asteroid, Astronomical catalog, Astronomical object, Astronomical survey, Brown dwarf, California Institute of Technology, Canis Major Overdensity, Cerro Tololo Inter-American Observatory, Fred Lawrence Whipple Observatory, Frequency band, Galaxy, Hemispheres of Earth, Infrared, Infrared Processing and Analysis Center, Infrared Science Archive, Jet Propulsion Laboratory, Mercury cadmium telluride, Micrometre, Milky Way, Minor planet, NASA, National Science Foundation, Nebula, Photometry (astronomy), Planet, Point source, Public domain, Star, Star cluster, Star formation, University of Massachusetts Amherst, Zone of Avoidance, 2M1207, 2MASS 0939-2448, 2MASS J04151954-0935066, 2MASS J04414489+2301513.

Apparent magnitude

The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on Earth.

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Asteroid

Asteroids are minor planets, especially those of the inner Solar System.

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Astronomical catalog

An astronomical catalog or catalogue is a list or tabulation of astronomical objects, typically grouped together because they share a common type, morphology, origin, means of detection, or method of discovery.

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Astronomical object

An astronomical object or celestial object is a naturally occurring physical entity, association, or structure that exists in the observable universe.

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Astronomical survey

An astronomical survey is a general map or image of a region of the sky which lacks a specific observational target.

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Brown dwarf

Brown dwarfs are substellar objects that occupy the mass range between the heaviest gas giant planets and the lightest stars, having masses between approximately 13 to 75–80 times that of Jupiter, or approximately to about.

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California Institute of Technology

The California Institute of Technology (abbreviated Caltech)The university itself only spells its short form as "Caltech"; other spellings such as.

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Canis Major Overdensity

The Canis Major Dwarf Galaxy (CMa Dwarf) or Canis Major Overdensity (CMa Overdensity) is a disputed dwarf irregular galaxy in the Local Group, located in the same part of the sky as the constellation Canis Major.

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Cerro Tololo Inter-American Observatory

The Cerro Tololo Inter-American Observatory (CTIO) is an astronomical observatory located on Cerro Tololo in the Coquimbo Region of northern Chile, with additional facilities located on Cerro Pachón about to the southeast.

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Fred Lawrence Whipple Observatory

The Fred Lawrence Whipple Observatory is an American astronomical observatory owned and operated by the Smithsonian Astrophysical Observatory (SAO); it is their largest field installation outside of their main site in Cambridge, Massachusetts.

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Frequency band

A frequency band is an interval in the frequency domain, delimited by a lower frequency and an upper frequency.

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Galaxy

A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter.

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Hemispheres of Earth

In geography and cartography, the hemispheres of Earth refer to any division of the globe into two hemispheres (from Ancient Greek ἡμισφαίριον hēmisphairion, meaning "half of a sphere").

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Infrared

Infrared radiation (IR) is electromagnetic radiation (EMR) with longer wavelengths than those of visible light, and is therefore generally invisible to the human eye (although IR at wavelengths up to 1050 nm from specially pulsed lasers can be seen by humans under certain conditions). It is sometimes called infrared light.

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Infrared Processing and Analysis Center

The Infrared Processing and Analysis Center (IPAC) provides science operations, data management, data archives and community support for astronomy and planetary science missions.

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Infrared Science Archive

The Infrared Science Archive (IRSA) curates the science products of NASA's infrared and submillimeter projects, such as the Spitzer Space Telescope, the Wide-field Infrared Survey Explorer (WISE), the Infrared Astronomical Satellite (IRAS), and the Two Micron All-Sky Survey (2MASS).

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Jet Propulsion Laboratory

The Jet Propulsion Laboratory (JPL) is a federally funded research and development center and NASA field center in Pasadena, California, United States, with large portions of the campus in La Cañada Flintridge, California.

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Mercury cadmium telluride

HgCdTe or mercury cadmium telluride (also cadmium mercury telluride, MCT, MerCad Telluride, MerCadTel, MerCaT or CMT) is an alloy of cadmium telluride (CdTe) and mercury telluride (HgTe) with a tunable bandgap spanning the shortwave infrared to the very long wave infrared regions.

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Micrometre

The micrometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American spelling), also commonly known as a micron, is an SI derived unit of length equaling (SI standard prefix "micro-".

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Milky Way

The Milky Way is the galaxy that contains our Solar System.

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Minor planet

A minor planet is an astronomical object in direct orbit around the Sun (or more broadly, any star with a planetary system) that is neither a planet nor exclusively classified as a comet.

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NASA

The National Aeronautics and Space Administration (NASA) is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research.

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National Science Foundation

The National Science Foundation (NSF) is a United States government agency that supports fundamental research and education in all the non-medical fields of science and engineering.

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Nebula

A nebula (Latin for "cloud" or "fog"; pl. nebulae, nebulæ, or nebulas) is an interstellar cloud of dust, hydrogen, helium and other ionized gases.

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Photometry (astronomy)

Photometry is a technique of astronomy concerned with measuring the flux, or intensity of an astronomical object's electromagnetic radiation.

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Planet

A planet is an astronomical body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighbouring region of planetesimals.

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Point source

A point source is a single identifiable localised source of something.

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Public domain

The public domain consists of all the creative works to which no exclusive intellectual property rights apply.

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Star

A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.

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Star cluster

Star clusters are groups of stars.

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Star formation

Star formation is the process by which dense regions within molecular clouds in interstellar space, sometimes referred to as "stellar nurseries" or "star-forming regions", collapse and form stars.

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University of Massachusetts Amherst

The University of Massachusetts Amherst (abbreviated UMass Amherst and colloquially referred to as UMass or Massachusetts) is a public research and land-grant university in Amherst, Massachusetts, United States, and the flagship campus of the University of Massachusetts system.

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Zone of Avoidance

The Zone of Avoidance (ZOA) is the area of the sky that is obscured by the Milky Way.

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2M1207

2M1207, 2M1207A or 2MASS J12073346-3932539 is a brown dwarf located in the constellation Centaurus; a companion object, 2M1207b, may be the first extrasolar planetary-mass companion to be directly imaged, and is the first discovered orbiting a brown dwarf.

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2MASS 0939-2448

2MASS 0939-2448 (full designation is 2MASS J09393548-2448279) is a probable system of two nearby T-type brown dwarfs, located in constellation Antlia at 17.4 light-years from Earth.

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2MASS J04151954-0935066

2MASS J04151954-0935066 (also abbreviated to 2MASS 0415-0935) is a brown dwarf of spectral class T8, in the constellation Eridanus about 18.6 light-years from Earth.

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2MASS J04414489+2301513

2MASS J04414489+2301513 (often abbreviated as 2M J044144) is a young brown dwarf approximately 470 light years (145 parsecs) away with an orbiting companion about 5–10 times the mass of Jupiter.

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Redirects here:

2 Micron All Sky Survey, 2003yCat.2246....0C, 2MASS J11193254−1137466, 2MASX, Two Micron All Sky Survey, Two Micron All-Sky Survey, Two-Micron All Sky Survey, VizieR On-line Data Catalog: II/246. Originally published in: 2003yCat.2246....0C.

References

[1] https://en.wikipedia.org/wiki/2MASS

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