Results 1 to 10 of about 1,502 (153)

Decade-Long Photometric Observations of Light Pollution and Cloud Effects on Night Sky Brightness in Hong Kong

Remote Sensing
This study examines how night sky brightness (NSB) in Hong Kong has evolved over the past decade. It combines recent datasets covering 2019–2023 with the earlier dataset analyzed in a previous study (2010–2013).
Chu Wing So, Chun Shing Jason Pun, Shengjie Liu   +2 more
doaj   +1 more source

Night airglow in RGB mode

Solar-Terrestrial Physics, 2016
To study dynamics of the upper atmosphere, we consider results of the night sky photometry, using a color CCD camera and taking into account the night airglow and features of its spectral composition.
Mikhalev А.V., Podlesny S.V., Stoeva P.V.   +2 more
doaj   +1 more source

Landscape Potential and Light Pollution as Key Factors for Astrotourism Development: A Case Study of a Slovak Upland Region

Land, 2020
Astrotourism is considered to be a modern form of ecotourism. The main resource for astrotourism is a high-quality night sky, but this is very sensitive to natural as well as anthropogenic factors; for example, land utilization and expansion of urban ...
Radoslava Kanianska, Jana Škvareninová, Stanislav Kaniansky   +2 more
doaj   +1 more source

The network signature of constellation line figures.

PLoS ONE, 2022
In traditional astronomies across the world, groups of stars in the night sky were linked into constellations-symbolic representations rich in meaning and with practical roles.
Doina Bucur
doaj   +1 more source

Machine-Learning-Based Monitoring of Night Sky Brightness Using Sky Quality Meters and Multi-Source Remote Sensing

Remote Sensing
With the rapid pace of urbanization, light pollution has emerged as a critical environmental issue. Evaluating and managing light pollution effectively is challenging, as traditional monitoring methods often fail to capture its spatial distribution and ...
Siyue Zheng, Yanrong Chen, Anwar Eziz, Alishir Kurban, Tim Van de Voorde, Philippe De Maeyer   +5 more
doaj   +1 more source

Intercomparisons of Nine Sky Brightness Detectors

Sensors, 2011
Nine Sky Quality Meters (SQMs) have been intercompared during a night time measurement campaign held in the Netherlands in April 2011. Since then the nine SQMs have been distributed across the Netherlands and form the Dutch network for monitoring night ...
Henk Spoelstra, Wim Schmidt, Rene van der Hoff, Marty Haaima, Peter den Outer, Dorien Lolkema   +5 more
doaj   +1 more source

Quantifying Night Sky Brightness as a Stressor for Coastal Ecosystems in Moreton Bay, Queensland

Remote Sensing
Growing light pollution is increasingly studied in terrestrial environments. However, research on night lights in coastal ecosystems is limited. We aimed to complement spaceborne remote sensing with ground-based hemispheric photos to quantify the ...
Noam Levin, Rachel Madeleine Cooper, Salit Kark   +2 more
doaj   +1 more source

Toward a Spectrophotometric Characterization of the Chilean Night Sky. A First Quantitative Assessment of ALAN across the Coquimbo Region

The Astronomical Journal
Light pollution is recognized as a global issue that, like other forms of anthropogenic pollution, has a significant impact on ecosystems and adverse effects on living organisms. Plentiful evidence suggests that it has been increasing at an unprecedented
Rodolfo Angeloni, Juan Pablo Uchima-Tamayo, Marcelo Jaque Arancibia, Roque Ruiz-Carmona, Diego Fernández Olivares, Pedro Sanhueza, Guillermo Damke, Ricardo Moyano, Verónica Firpo, Javier Fuentes, Javier Sayago   +10 more
doaj   +1 more source

Hydroxyl Lines and Moonlight: A High Spectral Resolution Investigation of Near-infrared Skylines from Maunakea to Guide Near-infrared Spectroscopic Surveys

The Astronomical Journal
Subtracting the changing sky contribution from the near-infrared (NIR) spectra of faint astronomical objects is challenging and crucial to a wide range of science cases such as estimating the velocity dispersions of dwarf galaxies, studying the gas ...
Frederick Dauphin, Andreea Petric, Étienne Artigau, Andrew W. Stephens, Neil James Cook, Steven Businger, Nicolas Flagey, Jennifer Marshall, Michelle Ntampaka, Swara Ravindranath, Laurie Rousseau-Nepton   +10 more
doaj   +1 more source

HATPI Preperihelion Time-series Photometry of the Interstellar Comet 3I/ATLAS

The Astronomical Journal
The Hungarian-made Automated Telescope PI Steradians (HATPI) is a recently commissioned time-domain facility at Las Campanas Observatory, Chile, that uses 64 wide-angle, 9.6 cm diameter lenses and back-illuminated CCDs, yielding a mosaic field-of-view of
Joel D. Hartman, Gáspár Á. Bakos, Andrés Jordán, Sarah Thiele, Zoltán Csubry, Geert Jan Talens, Attila Bódi, Sándor Pigai, István Domsa, Anthony Keyes, Vincent Suc, Adriana Gaitan, Antoine Thibault   +12 more
doaj   +1 more source