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The Christmas tree night light has taken social media by storm with over a combined 10 million views on TikTok videos that feature small, tree-shaped lights. These night lights are designed to ...
Moravian stars in the Striezelmarkt in Dresden A Moravian star half assembled A completed Moravian star hanging by a church. A Moravian star (German: Herrnhuter Stern) is an illuminated decoration used during the Christian liturgical seasons of Advent, Christmas, and Epiphany representing the Star of Bethlehem pointing towards the infant Jesus. [1]
A Zeiss Universarium Mark IX starball projector. A planetarium projector, also known as a star projector, is a device used to project images of celestial objects onto the dome in a planetarium. Modern planetarium projectors were first designed and built by the Carl Zeiss Jena company in Germany between 1923 and 1925, and have since grown more ...
The night sky is the nighttime appearance of celestial objects like stars, planets, and the Moon, which are visible in a clear sky between sunset and sunrise, when the Sun is below the horizon. Natural light sources in a night sky include moonlight, starlight, and airglow, depending on location and timing. Aurorae light up the skies above the ...
Directly taking images of night sky is also a part of astrophotography. [11] Like other photography, it can be used for the pursuit of science and/or leisure. [12] [13] Subjects include nocturnal animals. [11] In many cases starlight photography may also overlap with a need to understand the impact of moonlight. [11]
Digistar is the first computer graphics-based planetarium projection and content system.It was designed by Evans & Sutherland and released in 1983. The technology originally focused on accurate and high quality display of stars, including for the first time showing stars from points of view other than Earth's surface, travelling through the stars, and accurately showing celestial bodies from ...
Mexico City at night, showing skyglow A map from 1996 to 1997 showing the extent of skyglow over Europe. Skyglow (or sky glow) is the diffuse luminance of the night sky, apart from discrete light sources such as the Moon and visible individual stars. It is a commonly noticed aspect of light pollution.
English: This image of Earth’s city lights was created with data from the Defense Meteorological Satellite Program (DMSP) Operational Linescan System (OLS). Originally designed to view clouds by moonlight, the OLS is also used to map the locations of permanent lights on the Earth’s surface.