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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 ...
A sun dog (or sundog) or mock sun, also called a parhelion[ 1 ] (plural parhelia) in atmospheric science, is an atmospheric optical phenomenon that consists of a bright spot to one or both sides of the Sun. Two sun dogs often flank the Sun within a 22° halo. The sun dog is a member of the family of halos caused by the refraction of sunlight by ...
Aurora australis seen from the ISS, 2017 [1]. An aurora [a] (pl. aurorae or auroras), [b] also commonly known as the northern lights (aurora borealis) or southern lights (aurora australis), [c] is a natural light display in Earth's sky, predominantly seen in high-latitude regions (around the Arctic and Antarctic).
How to see the 'comet of the century' To begin, don't worry if the night is cloudy. Comet C/2023 A3 will be zooming in the sky throughout October, meaning you'll have several opportunities to ...
night sky The appearance of the Earth's sky at nighttime, when the Sun is below the horizon, and more specifically when clear weather and low levels of ambient light permit visibility of celestial objects such as stars, planets, and the Moon. The night sky remains a fundamental setting for both amateur and professional observational astronomy.
The night sky above a French chapel with the Milky Way and stars visible, and light pollution on the horizon. Night or nighttime is the period of darkness when the Sun is below the horizon. The opposite of nighttime is daytime. Sunlight illuminates one side of the Earth, leaving the other in darkness.
The night sky and the effects of light at night provided the subject for some of van Gogh's more famous paintings, including Café Terrace at Night (painted earlier the same month) and the June, 1889, canvas from Saint-Remy, The Starry Night. A sketch of the painting is included in a letter van Gogh sent to his friend Eugène Boch on 2 October ...
Diwali (English: / d ɪ ˈ w ɑː l iː /), also known as Deepavali (IAST: Dīpāvalī), [4] is the Hindu festival of lights, with variations celebrated in other Indian religions. [ a ] It symbolises the spiritual "victory of light over darkness, good over evil, and knowledge over ignorance".