Table of Contents
40 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, Galaxy, H band (infrared), Hemispheres of Earth, Infrared, Infrared Processing and Analysis Center, Infrared Science Archive, J band (infrared), Jet Propulsion Laboratory, K band (infrared), Mercury cadmium telluride, Micrometre, Milky Way, Minor planet, NASA, National Science Foundation, Nebula, Photometry (astronomy), Planet, Point source, Public domain, Spectral band, Star, Star cluster, Stellar mass, University of Massachusetts Amherst, Zone of Avoidance, 2M1207, 2MASS J04151954−0935066, 2MASS J0441+2301, 2MASS J09393548−2448279.
- Photometric systems
Apparent magnitude
Apparent magnitude is a measure of the brightness of a star or other astronomical object.
See 2MASS and Apparent magnitude
Asteroid
An asteroid is a minor planet—an object that is neither a true planet nor an identified comet— that orbits within the inner Solar System.
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. 2MASS and astronomical catalog are astronomical catalogues.
See 2MASS and Astronomical catalog
Astronomical object
An astronomical object, celestial object, stellar object or heavenly body is a naturally occurring physical entity, association, or structure that exists within the observable universe.
See 2MASS and Astronomical object
Astronomical survey
An astronomical survey is a general map or image of a region of the sky (or of the whole sky) that lacks a specific observational target. 2MASS and astronomical survey are astronomical surveys.
See 2MASS and Astronomical survey
Brown dwarf
Brown dwarfs are substellar objects that have more mass than the biggest gas giant planets, but less than the least massive main-sequence stars.
California Institute of Technology
The California Institute of Technology (branded as Caltech) is a private research university in Pasadena, California.
See 2MASS and California Institute of Technology
Canis Major Overdensity
The Canis Major Overdensity (CMa Overdensity) or Canis Major Dwarf Galaxy (CMa Dwarf) is a disputed dwarf irregular galaxy in the Local Group, located in the same part of the sky as the constellation Canis Major.
See 2MASS and Canis Major Overdensity
Cerro Tololo Inter-American Observatory
The Cerro Tololo Inter-American Observatory (CTIO) is an astronomical observatory located on the summit of Mt.
See 2MASS and Cerro Tololo Inter-American Observatory
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.
See 2MASS and Fred Lawrence Whipple Observatory
Galaxy
A galaxy is a system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity.
See 2MASS and Galaxy
H band (infrared)
In infrared astronomy, the H band refers to an atmospheric transmission window centred on 1.65 micrometres with a Full width at half maximum of 0.35 micrometresIan McClean, Electronic Imaging in Astronomy, Second Edition, Springer, 2008.
See 2MASS and H band (infrared)
Hemispheres of Earth
In geography and cartography, hemispheres of Earth are any division of the globe into two equal halves (hemispheres), typically divided into northern and southern halves by the Equator or into western and eastern halves by the Prime meridian.
See 2MASS and Hemispheres of Earth
Infrared
Infrared (IR; sometimes called infrared light) is electromagnetic radiation (EMR) with wavelengths longer than that of visible light but shorter than microwaves.
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.
See 2MASS and Infrared Processing and Analysis Center
Infrared Science Archive
The Infrared Science Archive (IRSA) is the primary archive for the infrared and submillimeter astronomical projects of NASA, the space agency of the United States.
See 2MASS and Infrared Science Archive
J band (infrared)
In infrared astronomy, the J band refers to an atmospheric transmission window (1.1 to 1.4 um) centred on 1.25 micrometres (in the near-infrared).
See 2MASS and J band (infrared)
Jet Propulsion Laboratory
Jet Propulsion Laboratory (JPL) is a Federally Funded Research and Development Center (FFRDC) in La Cañada Flintridge, California, Crescenta Valley, United States.
See 2MASS and Jet Propulsion Laboratory
K band (infrared)
In infrared astronomy, the K band is an atmospheric transmission window centered on 2.2 μm (in the near-infrared 136 THz range).
See 2MASS and K band (infrared)
Mercury cadmium telluride
Hg1−xCdxTe or mercury cadmium telluride (also cadmium mercury telluride, MCT, MerCad Telluride, MerCadTel, MerCaT or CMT) is a chemical compound of cadmium telluride (CdTe) and mercury telluride (HgTe) with a tunable bandgap spanning the shortwave infrared to the very long wave infrared regions.
See 2MASS and Mercury cadmium telluride
Micrometre
The micrometre (Commonwealth English) as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American English), also commonly known by the non-SI term micron, is a unit of length in the International System of Units (SI) equalling (SI standard prefix "micro-".
Milky Way
The Milky Way is the galaxy that includes the Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars that cannot be individually distinguished by the naked eye.
Minor planet
According to the International Astronomical Union (IAU), a minor planet is an astronomical object in direct orbit around the Sun that is exclusively classified as neither a planet nor a comet.
NASA
The National Aeronautics and Space Administration (NASA) is an independent agency of the U.S. federal government responsible for the civil space program, aeronautics research, and space research.
See 2MASS and NASA
National Science Foundation
The U.S. National Science Foundation (NSF) is an independent agency of the United States federal government that supports fundamental research and education in all the non-medical fields of science and engineering.
See 2MASS and National Science Foundation
Nebula
A nebula (cloud, fog;: nebulae, nebulæ, or nebulas) is a distinct luminescent part of interstellar medium, which can consist of ionized, neutral, or molecular hydrogen and also cosmic dust.
See 2MASS and Nebula
Photometry (astronomy)
In astronomy, photometry, from Greek photo- ("light") and -metry ("measure"), is a technique used in astronomy that is concerned with measuring the flux or intensity of light radiated by astronomical objects. 2MASS and photometry (astronomy) are Photometric systems.
See 2MASS and Photometry (astronomy)
Planet
A planet is a large, rounded astronomical body that is generally required to be in orbit around a star, stellar remnant, or brown dwarf, and is not one itself.
See 2MASS and Planet
Point source
A point source is a single identifiable localised source of something.
Public domain
The public domain (PD) consists of all the creative work to which no exclusive intellectual property rights apply.
Spectral band
Spectral bands are regions of a given spectrum, having a specific range of wavelengths or frequencies.
Star
A star is a luminous spheroid of plasma held together by self-gravity.
See 2MASS and Star
Star cluster
Star clusters are large groups of stars held together by self-gravitation.
Stellar mass
Stellar mass is a phrase that is used by astronomers to describe the mass of a star.
University of Massachusetts Amherst
The University of Massachusetts Amherst (UMass Amherst) is a public land-grant research university in Amherst, Massachusetts.
See 2MASS and University of Massachusetts Amherst
Zone of Avoidance
The Zone of Avoidance (ZOA, ZoA), or Zone of Galactic Obscuration (ZGO), is the area of the sky that is obscured by the Milky Way.
See 2MASS and Zone of Avoidance
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. 2MASS and 2M1207 are 2MASS objects.
See 2MASS and 2M1207
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. 2MASS and 2MASS J04151954−0935066 are 2MASS objects.
See 2MASS and 2MASS J04151954−0935066
2MASS J0441+2301
2MASS J0441+2301 is a young quadruple system hosting a planetary-mass object, a red dwarf star and two brown dwarfs, approximately 470 light years (145 parsecs) away. 2MASS and 2MASS J0441+2301 are 2MASS objects.
See 2MASS and 2MASS J0441+2301
2MASS J09393548−2448279
2MASS J09393548−2448279 (abbreviated 2MASS 0939−2448) is a probable system of two nearby T-type brown dwarfs, located in constellation Antlia at 17.4 light-years from Earth. 2MASS and 2MASS J09393548−2448279 are 2MASS objects.
See 2MASS and 2MASS J09393548−2448279
See also
Photometric systems
- 2MASS
- Color index
- J-PAS
- Minnaert function
- North polar sequence
- Photometric system
- Photometric-standard star
- Photometry (astronomy)
- Sloan Digital Sky Survey
- Strömgren photometric system
- The INT Photometric H-Alpha Survey
- UBV photometric system
- Ultraviolet/Optical Telescope
- Vilnius photometric system
- WiggleZ Dark Energy Survey
- Zero point (photometry)
References
Also known as 2 Micron All Sky Survey, 2003yCat.2246....0C, 2MASSI, 2MASSW, 2MASX, Two Micron All Sky Survey, Two Micron All-Sky Survey, Two-Micron All Sky Survey, Two-Micron All-Sky Survey, VizieR On-line Data Catalog: II/246, VizieR On-line Data Catalog: II/246. Originally Published In: 2003yCat.2246....0C, VizieR On-line Data Catalog: II/246. Originally Published in: University of Massachusetts and Infrared Processing and Analysis Center.