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Many star names are, in origin, descriptive of the part in the constellation they are found in; thus Phecda, a corruption of Arabic فخذ الدب ( fakhdh ad-dubb, 'thigh of the bear'). Only a handful of the brightest stars have individual proper names not depending on their asterism; so Sirius ('the scorcher'), Antares ('rival of Ares ', i.e ...
Sealing depicting the Neo Sumerian King, Ibbi-Sin seated with a star or Dingir and crescent adjacent to him Depiction of the emblems of Ishtar (Venus), Sin (Moon), and Shamash (Sun) on a boundary stone of Meli-Shipak II (12th century BC) Venus, Sun and Moon on the Stele of Nabonidus (r. 556–539 BC) found at Harran (Şanlıurfa Museum)
The use of astronomical symbols for the Sun and Moon dates to antiquity. The forms of the symbols that appear in the original papyrus texts of Greek horoscopes are a circle with one ray () for the Sun and a crescent for the Moon. [3] The modern Sun symbol, a circle with a dot (☉), first appeared in Europe in the Renaissance.
Night sky. 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.
Astronomical naming conventions. In ancient times, only the Sun and Moon, a few stars, and the most easily visible planets had names. Over the last few hundred years, the number of identified astronomical objects has risen from hundreds to over a billion, and more are discovered every year. Astronomers need to be able to assign systematic ...
Core Worlds – powerful and wealthy planets with millennia-long histories, many of them founding members of the Galactic Republic. On-screen examples include Coruscant, Corellia, Alderaan, and Hosnian Prime. The Colonies – the first colonies founded by the nascent Galactic Republic in ancient times.
There are 7 planets. A planet is a large, rounded astronomical body that is neither a star nor its remnant. The best available theory of planet formation is the nebular hypothesis, which posits that an interstellar cloud collapses out of a nebula to create a young protostar orbited by a protoplanetary disk. Solar System; planets outside of the ...
Astronomical object. An astronomical object, celestial object, stellar object or heavenly body is a naturally occurring physical entity, association, or structure that exists within the observable universe. [1] In astronomy, the terms object and body are often used interchangeably. However, an astronomical body or celestial body is a single ...