Results 31 to 40 of about 59,040 (180)

The night-sky at the Calar Alto Observatory II: The sky at the near infrared [PDF]

, 2008
We present here the characterization of the night sky-brightness at the near-infrared, the telescope seeing, and the fraction of useful time at the Calar Alto observatory.
Birkle K., Boehnhardt, Chamberlain J. W., Content R., Cox A. N., Cuby J., D. Cristobal, Glass I. S., J. Aceituno, J. Alves, J. Perea, Leinert C., Oliva E., Rousselot P., S. F. Sánchez, Sarazin M., U. Thiele   +16 more
core   +3 more sources

Citizen Science Provides Valuable Data for Monitoring Global Night Sky Luminance [PDF]

, 2013
The skyglow produced by artificial lights at night is one of the most dramatic anthropogenic modifications of Earth’s biosphere. The GLOBE at Night citizen science project allows individual observers to quantify skyglow using star maps showing ...
Elvidge, Christopher D., Falchi, Fabio, Fischer, Jürgen, Hölker, Franz, Kuechly, Helga U., Kyba, Christopher C. M., Ruhtz, Thomas, Wagner, Janna M., Walker, Constance E.   +8 more
core   +1 more source

Effects of the COVID-19 Lockdown on Urban Light Emissions: Ground and Satellite Comparison

Remote Sensing, 2021
‘Lockdown’ periods in response to COVID-19 have provided a unique opportunity to study the impacts of economic activity on environmental pollution (e.g., NO2, aerosols, noise, light).
Máximo Bustamante-Calabria, Alejandro Sánchez de Miguel, Susana Martín-Ruiz, Jose-Luis Ortiz, José M. Vílchez, Alicia Pelegrina, Antonio García, Jaime Zamorano, Jonathan Bennie, Kevin J. Gaston   +9 more
doaj   +1 more source

The night-sky at the Calar Alto Observatory [PDF]

, 2007
We present a characterization of the main properties of the night-sky at the Calar Alto observatory for the time period between 2004 and 2007. We use optical spectrophotometric data, photometric calibrated images taken in moonless observing periods ...
Burki G., D. Pérez‐Ramírez, Holmes R. W., Ingham M. F., J. Aceituno, J. Alves, Lane M., Leinert C., Pedani M., Rufener F., S. F. Sánchez, Smith F. G., Treanor P. J., Tug H., U. Thiele, Walker A., Walker A., Walker M. F.   +17 more
core   +3 more sources

Influence of replacing discharge lamps with LED sources in outdoor lighting installations on astronomical observations [PDF]

Bulletin of the Polish Academy of Sciences: Technical Sciences, 2023
Light pollution has a detrimental effect on astronomy. Artificial light emitted from outdoor lighting increases the brightness of the night sky, making it difficult to observe astronomical objects.
Przemysław Tabaka, Sylwester Kołomański   +1 more
doaj   +1 more source

Remote Sensing of Aerosols at Night with the CoSQM Sky Brightness Data

Remote Sensing, 2021
Aerosol optical depth is an important indicator of aerosol particle properties and their associated radiative impacts. AOD determination is very important to achieve relevant climate modelling.
Charles Marseille, Martin Aubé, Africa Barreto, Alexandre Simoneau   +3 more
doaj   +1 more source

Worldwide variations in artificial skyglow [PDF]

, 2015
Despite constituting a widespread and significant environmental change, understanding of artificial nighttime skyglow is extremely limited. Until now, published monitoring studies have been local or regional in scope, and typically of short duration.
Bennie, Jonathan, Birriel, Ignacio, Birriel, Jennifer J., Cool, Andrew, Danielsen, Arne, Davies, Thomas W., Edwards, William, Ehlert, Rainer, Falchi, Fabio, Fischer, Jürgen, Gaston, Kevin J., Giacomelli, Andrea, Giubbilini, Francesco, Haaima, Marty, Hesse, Claudia, Heygster, Georg, Hölker, Franz, Inger, Richard, Jensen, Linsey J., Kuechly, Helga U., Kuehn, John, Kyba, Christopher C. M., Langill, Phil, Lolkema, Dorien E., Nagy, Matthew, Nievas, Miguel, Ochi, Nobuaki, Outer, Peter N. den, Popow, Emil, Posch, Thomas, Puschnig, Johannes, Ruhtz, Thomas, Schmidt, Wim, Schwarz, Robert, Schwope, Axel, Spoelstra, Henk, Tekatch, Anthony, Tong, Kai Pong, Trueblood, Mark, Walker, Constance E., Weber, Michael, Welch, Douglas L., Zamorano, Jaime   +42 more
core   +4 more sources

The night sky brightness at Potsdam-Babelsberg

, 2013
We analyze the results of a 2 years (2011--2012) time series of night sky photometry performed at the Leibniz Institute for Astrophysics in Potsdam (AIP).
Posch, Thomas, Puschnig, Johannes, Schwarz, Robert, Schwope, Axel   +3 more
core   +1 more source

Evaluating the summer night sky brightness at a research field site on Lake Stechlin in northeastern Germany [PDF]

, 2016
We report on luminance measurements of the summer night sky at a field site on a freshwater lake in northeastern Germany (Lake Stechlin) to evaluate the amount of artificial skyglow from nearby and distant towns in the context of a planned study on light
Gessner, Mark O., Hölker, Franz, Jechow, Andreas, Kolláth, Zoltán, Kyba, Christopher C. M.   +4 more
core   +3 more sources

Spatial and temporal analysis of artificial light pollution of the city night sky. A case study from Toruń

Miscellanea Geographica: Regional Studies on Development, 2023
Artificial light pollution of the night sky over urban areas and in their immediate vicinity has become a common anthropogenic phenomenon and a major problem of the modern urban landscape.
Karpińska Dominika, Kunz Mieczysław
doaj   +1 more source