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View of the night sky in July The day's blue sky, clouds and the Moon. The sky is an unobstructed view upward from the surface of the Earth. It includes the atmosphere and outer space. It may also be considered a place between the ground and outer space, thus distinct from outer space. In the field of astronomy, the sky is also called the ...
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.
In 2016, the International Astronomical Union (IAU) organized a Working Group on Star Names (WGSN) [2] to catalog and standardize proper names for stars. The WGSN's first bulletin, dated July 2016, [3] included a table of 125 stars comprising the first two batches of names approved by the WGSN (on 30 June and 20 July 2016) together with names of stars adopted by the IAU Executive Committee ...
Historical brightest stars, the brightest star in Earth's night sky at each period within the last or next 5 million years; Limiting magnitude; List of variable stars; List of semiregular variable stars; List of stars that have unusual dimming periods; List of brightest natural objects in the sky; List of largest stars; List of most massive stars
Rather, since the planets all orbit along or near the plane of our solar system, called the ecliptic, they appear in a line across the sky. It's the same reason the sun always follows the same ...
Second brightest star in the night sky. Gacrux (γ Crucis) 73 [95] L/T eff: Twenty-sixth brightest star in the night sky. Polaris (α Ursae Minoris) 46.27 ± 0.42 [96] AD The current star in the North Pole. It is a Classical Cepheid variable, and the brightest example of its class. Aldebaran (α Tauri) 45.1 ± 0.1 [97] AD Fourteenth brightest ...
The sky formations are known as "cavum clouds" or "fallstreak holes." Here we explore unique facts about these "hole-punch clouds." Learn how passing airplanes shape their formation.
A celestial map by the Dutch cartographer Frederik de Wit, 1670. A star chart is a celestial map of the night sky with astronomical objects laid out on a grid system. They are used to identify and locate constellations, stars, nebulae, galaxies, and planets. [1]