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• Jansky abstract "The flux unit or jansky (symbol Jy) is a non-SI unit of spectral flux density, or spectral irradiance, equivalent to 10−26 watts per square metre per hertz. The flux density or monochromatic flux, , of a source is the integral of the spectral radiance, , over the source solid angle:The unit is named after pioneering US radio astronomer Karl Guthe Jansky, and is defined as:(SI) (cgs)Since the jansky is obtained by integrating over the whole source solid angle, it is most simply used to describe point sources; for example, the Third Cambridge Catalogue of Radio Sources (3C) reports results in Jy. For extended sources, the surface brightness is often described with units of Jy per solid angle; for example, Far Infra-Red (FIR) maps from the IRAS satellite are in MJy/sr. While extended sources at all wavelengths can be reported with these units, for radio frequency maps, extended sources have traditionally been described in terms of a brightness temperature; for example the Haslam et al. 408 MHz all-sky continuum survey is reported in terms of a brightness temperature in K.".
• Jansky wikiPageExternalLink 1985BICDS..28...49H.
• Jansky wikiPageID "180090".
• Jansky wikiPageRevisionID "589562937".
• Jansky hasPhotoCollection Jansky.
• Jansky subject Category:Non-SI_metric_units.
• Jansky subject Category:Radio_astronomy.
• Jansky subject Category:Units_of_measurement.
• Jansky subject Category:Units_of_measurement_in_astronomy.
• Jansky type Abstraction100002137.
• Jansky type DefiniteQuantity113576101.
• Jansky type Measure100033615.
• Jansky type MetricUnit113604275.
• Jansky type Non-SIMetricUnits.
• Jansky type UnitOfMeasurement113583724.
• Jansky type UnitsOfMeasure.
• Jansky type UnitsOfMeasureInAstronomy.
• Jansky comment "The flux unit or jansky (symbol Jy) is a non-SI unit of spectral flux density, or spectral irradiance, equivalent to 10−26 watts per square metre per hertz.".
• Jansky label "Jansky (unidad)".
• Jansky label "Jansky (unité)".
• Jansky label "Jansky".
• Jansky label "Jansky".
• Jansky label "Jansky".
• Jansky label "Jansky".
• Jansky label "Jansky".
• Jansky label "Jansky".
• Jansky label "Янский (единица измерения)".
• Jansky label "جانسكي".
• Jansky label "ジャンスキー".
• Jansky label "揚斯基".
• Jansky sameAs Jansky.
• Jansky sameAs Jansky_(unidad).
• Jansky sameAs Jansky_(unité).
• Jansky sameAs Jansky.
• Jansky sameAs ジャンスキー.
• Jansky sameAs Jansky.
• Jansky sameAs Jansky.
• Jansky sameAs Jansky.
• Jansky sameAs m.018kyn.
• Jansky sameAs Q1434381.
• Jansky sameAs Q1434381.
• Jansky sameAs Jansky.
• Jansky wasDerivedFrom Jansky?oldid=589562937.
• Jansky isPrimaryTopicOf Jansky.