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When Globe at Night observations are averaged together, they are very strongly related to the sky brightness in the location. This is a single panel from this image. The standard deviation of an individual Globe at Night observation is approximately 1.2 stellar magnitudes. [2]
The globe was also depicted on media and souvenirs promoting the fair. [33] The Unisphere's popularity was also increased by the presence of fountainheads around the globe's base, which cooled down fair visitors on hot days. [34] During the fair, dramatic lighting at night gave the effect of sunrise moving over the surface of the globe.
Star chart of the south polar projection for Chinese astronomer Su Song's (1020–1101) celestial globe. During the Song dynasty (960–1279), the Chinese astronomer Su Song wrote a book titled Xin Yixiang Fa Yao (New Design for the Armillary Clock) containing five maps of 1,464 stars. This has been dated to 1092.
This includes some notes on how the globe should be decorated, suggesting ‘the sphere a dark colour resembling the night sky’. [ 5 ] The Farnese Atlas , a 2nd-century AD Roman marble sculpture of Atlas which probably copies an earlier work of the Hellenistic era, is holding a celestial globe 65 cm (26 in) in diameter, which for many years ...
IllumiNations: Reflections of Earth was a nighttime show performed nightly at Epcot at the Walt Disney World Resort in Bay Lake, Florida.The show utilized fireworks, pyrotechnics, water fountains, fire effects, lasers, searchlights, and a large rotating globe with curved LED screens to create a visual production on the park's World Showcase Lagoon.
[image needed] August 6, 1961 Vostok 2: First image, color images and movie of Earth from space taken by a person, by cosmonaut Gherman Titov – the first photographer from space.
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.
The length of polar night varies by latitude from 24 hours just inside the polar circles to 179 days at the poles. As there are various kinds of twilight, there also exist various kinds of polar twilight that progress towards true polar night. Each kind of polar night is defined as when it is darker than the corresponding kind of twilight.