Can we illuminate our cities and (still) see the stars?

Detalhes bibliográficos
Autor(a) principal: Bará, Salvador
Data de Publicação: 2021
Outros Autores: Falchi, Fábio, C Lima, Raúl, Pawley, Martin
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.22/18825
Resumo: Could we enjoy starry skies in our cities again? Arguably yes. The actual number of visible stars will depend, among other factors, on the spatial density of the overall city light emissions. In this paper it is shown that reasonably dark skies could be achieved in urban settings, even at the center of large metropolitan areas, if the light emissions are kept within admissible levels and direct glare from the light sources is avoided. These results may support the adoption of science-informed, democratic public decisions on the use of light in our municipalities, with the goal of recovering the possibility of contemplating the night sky everywhere in our planet.
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spelling Can we illuminate our cities and (still) see the stars?Sustainable lightingLight pollutionSky brightnessRadiometryPhotometryCould we enjoy starry skies in our cities again? Arguably yes. The actual number of visible stars will depend, among other factors, on the spatial density of the overall city light emissions. In this paper it is shown that reasonably dark skies could be achieved in urban settings, even at the center of large metropolitan areas, if the light emissions are kept within admissible levels and direct glare from the light sources is avoided. These results may support the adoption of science-informed, democratic public decisions on the use of light in our municipalities, with the goal of recovering the possibility of contemplating the night sky everywhere in our planet.LightingjournalRepositório Científico do Instituto Politécnico do PortoBará, SalvadorFalchi, FábioC Lima, RaúlPawley, Martin2021-11-05T16:28:18Z2021-10-252021-10-25T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.22/18825engBara, S., Falchi, F., Lima, R., & Pawley, M. (2021). Can we illuminate our cities and (still) see the stars? International Journal of Sustainable Lighting, 23, 58-69. https://doi.org/10.26607/ijsl.v23i2.1132586-124710.26607/ijsl.v23i2.113info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-13T13:11:52Zoai:recipp.ipp.pt:10400.22/18825Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:38:53.209402Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Can we illuminate our cities and (still) see the stars?
title Can we illuminate our cities and (still) see the stars?
spellingShingle Can we illuminate our cities and (still) see the stars?
Bará, Salvador
Sustainable lighting
Light pollution
Sky brightness
Radiometry
Photometry
title_short Can we illuminate our cities and (still) see the stars?
title_full Can we illuminate our cities and (still) see the stars?
title_fullStr Can we illuminate our cities and (still) see the stars?
title_full_unstemmed Can we illuminate our cities and (still) see the stars?
title_sort Can we illuminate our cities and (still) see the stars?
author Bará, Salvador
author_facet Bará, Salvador
Falchi, Fábio
C Lima, Raúl
Pawley, Martin
author_role author
author2 Falchi, Fábio
C Lima, Raúl
Pawley, Martin
author2_role author
author
author
dc.contributor.none.fl_str_mv Repositório Científico do Instituto Politécnico do Porto
dc.contributor.author.fl_str_mv Bará, Salvador
Falchi, Fábio
C Lima, Raúl
Pawley, Martin
dc.subject.por.fl_str_mv Sustainable lighting
Light pollution
Sky brightness
Radiometry
Photometry
topic Sustainable lighting
Light pollution
Sky brightness
Radiometry
Photometry
description Could we enjoy starry skies in our cities again? Arguably yes. The actual number of visible stars will depend, among other factors, on the spatial density of the overall city light emissions. In this paper it is shown that reasonably dark skies could be achieved in urban settings, even at the center of large metropolitan areas, if the light emissions are kept within admissible levels and direct glare from the light sources is avoided. These results may support the adoption of science-informed, democratic public decisions on the use of light in our municipalities, with the goal of recovering the possibility of contemplating the night sky everywhere in our planet.
publishDate 2021
dc.date.none.fl_str_mv 2021-11-05T16:28:18Z
2021-10-25
2021-10-25T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.22/18825
url http://hdl.handle.net/10400.22/18825
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Bara, S., Falchi, F., Lima, R., & Pawley, M. (2021). Can we illuminate our cities and (still) see the stars? International Journal of Sustainable Lighting, 23, 58-69. https://doi.org/10.26607/ijsl.v23i2.113
2586-1247
10.26607/ijsl.v23i2.113
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Lightingjournal
publisher.none.fl_str_mv Lightingjournal
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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