TY - JOUR KW - Artificial light KW - Celestial bodies KW - Ground based KW - Light pollution KW - Luminance KW - Photometric systems KW - Photometry KW - Pollution KW - Quantitative measurement KW - Transformation constant KW - Visual effects AU - Salvador Bara AB - A relevant number of light pollution studies deal with unwanted visual effects of artificial light at night, including the anthropogenic luminance of the sky that hinders the observation of celestial bodies which are the main target of ground-based astrophysical research, and a key asset of the intangible heritage of humankind. Most quantitative measurements and numerical models, however, evaluate the anthropogenic sky radiance in any of the standard Johnson-Cousins UBVRI photometric bands, generally in the V one. Since the Johnson-Cousins V band is not identical with the visual CIE V(λ) used to assess luminance, the conversion between these two photometric systems turns out to be spectrum-dependent. Given its interest for practical applications, in this Letter we provide the framework to perform this conversion and the transformation constants for black-body spectra of different absolute temperatures. BT - Photonics Letters of Poland DO - 10.4302/plp.v11i3.926 LA - English M1 - 3 N1 - Publisher: Photonics Society of Poland N2 - A relevant number of light pollution studies deal with unwanted visual effects of artificial light at night, including the anthropogenic luminance of the sky that hinders the observation of celestial bodies which are the main target of ground-based astrophysical research, and a key asset of the intangible heritage of humankind. Most quantitative measurements and numerical models, however, evaluate the anthropogenic sky radiance in any of the standard Johnson-Cousins UBVRI photometric bands, generally in the V one. Since the Johnson-Cousins V band is not identical with the visual CIE V(λ) used to assess luminance, the conversion between these two photometric systems turns out to be spectrum-dependent. Given its interest for practical applications, in this Letter we provide the framework to perform this conversion and the transformation constants for black-body spectra of different absolute temperatures. PY - 2019 SP - 63 EP - 65 T2 - Photonics Letters of Poland TI - Black-body luminance and magnitudes per square arcsecond in the Johnson-Cousins BVR photometric bands UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85073565416&doi=10.4302%2fplp.v11i3.926&partnerID=40&md5=8173fb19e6878328c2179d75609e44c4 VL - 11 SN - 20802242 (ISSN) ER -