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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]
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.
The documentary then shifts into Chile's recent past dealing with Pinochet and his dictatorship. Luís Henríquez, a survivor from the Chacabuco concentration camp, describes how a group of about 20, led by a Doctor Alvarez (who was knowledgeable in astronomy), were taught theory during the day and learned how to identify constellations at night.
Stargazing apps are brilliant for spotting constellations in the night sky, looking at the planets, identifying stars, and learning about astronomy.
Altair is the brightest star in the constellation Aquila. α Aquilae (Latinised to Alpha Aquilae) is the star's Bayer designation. The traditional name Altair has been used since medieval times. It is an abbreviation of the Arabic phrase النسر الطائر Al-Nisr Al-Ṭa'ir, "the flying eagle ". [22]
Winter constellations as seen from the tropics Flip book (158 images): Transit of Mars, Sun, Mercury, and Venus in 2017 The Winter Hexagon is an asterism appearing to be in the form of a hexagon with vertices at Rigel , Aldebaran , Capella , Pollux , Procyon , and Sirius .
Canopus is the brightest star in the constellation of Carina (top). The southeastern wall of the Kaaba in Mecca is aligned with the rising point of Canopus, and is also named Janūb. [36] The Bedouin people of the Negev and Sinai knew Canopus as Suhayl, and used it and Polaris as the two principal stars for navigation at night. Because it ...
The International Astronomical Union (IAU) designates 88 constellations. [1] In the table below, they are listed by geographical visibility according to latitude as seen from Earth, as well as the best months for viewing the constellations at 21:00 (9 p.m.).