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The Collaborative International Dictionary
Betelgeuse

Betelguese \Bet"el*guese\ (b[e^]t"[e^]l*j[=e]z), n. [F. B['e]telgeuse, of Arabic origin.] (Astron.) A bright star of the first magnitude, near one shoulder of Orion. [Written also Betelgeux and Betelgeuse.]

Douglas Harper's Etymology Dictionary
Betelgeuse

bright star in the shoulder of Orion, 1515, from Arabic Ibt al Jauzah "the Armpit of the Central One." Intermediary forms include Bed Elgueze, Beit Algueze.

Wikipedia
Betelgeuse

Betelgeuse, also known by its Bayer designation Alpha Orionis (shortened to α Orionis or α Ori), is the ninth-brightest star in the night sky and second-brightest in the constellation of Orion. Distinctly reddish, it is a semiregular variable star whose apparent magnitude varies between 0.0 and 1.3, the widest range of any first-magnitude star. Betelgeuse is one of three stars that make up the Winter Triangle asterism, and it marks the center of the Winter Hexagon. The star's name is derived from the Arabic or , meaning "the hand of Orion".

The star is classified as a red supergiant of spectral type M1-2 and is one of the largest and most luminous stars visible to the naked eye. If Betelgeuse were at the center of the Solar System, its surface would extend past the asteroid belt, possibly to the orbit of Jupiter and beyond, wholly engulfing Mercury, Venus, Earth and Mars. Calculations of its mass range from slightly under ten to a little over twenty times that of the Sun. Its distance from Earth was estimated in 2008 at 640 light-years, yielding a mean absolute magnitude of about −6. Less than 10 million years old, Betelgeuse has evolved rapidly because of its high mass. Having been ejected from its birthplace in the Orion OB1 Association—which includes the stars in Orion's Belt—this crimson runaway has been observed moving through the interstellar medium at a supersonic speed of 30 km/s, creating a bow shock over 4 light-years wide. Currently in a late stage of stellar evolution, the supergiant is expected to proceed through its life cycle before exploding as a type II supernova within the next million years.

In 1920, Betelgeuse became the second star (after the Sun) to have the angular size of its photosphere measured. Since then, researchers have used telescopes with different technical parameters to measure the stellar giant, often with conflicting results. Studies since 1990 have produced an angular diameter (apparent size) ranging from 0.043 to 0.056 arcseconds, with the differences ascribed to the non-sphericity, limb darkening, pulsations, and angular diameters that vary with wavelength. Betelgeuse is surrounded by a complex, asymmetric envelope roughly 250 times the size of the star, caused by mass loss from the star itself.

Betelgeuse (disambiguation)

Betelgeuse is a star in the Orion constellation. It may also refer to:

Ships
  • Betelgeuse, oil tanker destroyed in the 1979 Whiddy Island Disaster
  • USS Betelgeuse (AK-260), the last of the cargo ships in service in the United States Navy
Culture
  • Betelgeuse, a main character played by Michael Keaton in the 1988 American comedy horror fantasy film Beetlejuice
  • Betelgeuse, sequel to Franco-Belgian science-fiction comic series Aldebaran (comics)
  • Les bannis de Bételgeuse, 1998 young adult novel by Jean-Louis Trudel

Usage examples of "betelgeuse".

Meyers lives in San Francisco, red hair, high cheekbones, thirty-one years old, single, you met her in January oh-two, worked with you on the Betelgeuse Five deal.

Christian Scientists, psycho-analysts, electronic vibration diviners, therapeutists of all schools registered and unregistered, astrologers, astronomers who tell us that the sun is nearly a hundred million miles away and the Betelgeuse is ten times as big as the whole universe, physicists who balance Betelgeuse by describing the incredible smallness of the atom, and a host of other marvel mongers whose credulity would have dissolved the Middle Ages in a roar of sceptical merriment.

I assigned to the Mechandroid Belem a problem involving the opening of the Betelgeuse system.

She knows them all: Cassiopeia's chair, Betelgeuse, Aldeberon, the teapot, the swan.

Ha perciò una grandezza apparente inferiore a quella di Betelgeuse al suo massimo.

He got David of Betelgeuse to release his T-1 son, Perry, to take charge of Clarf Tower, borrowing Yoshuk from the Sef Tower until Perry became comfortable with the peculiarities of the planet.

Over the next fifteen years, devious politicking, strikes, ultimatums and power plays by nervous administrators on the other Systems - Altair, Capella, Betelgeuse and Procyon - were frequent: each Star determined to have equal safeguards against alien incursions.

The red giants, of the types of Aldebran and Arcturus, and their supergiant counterparts, like Betelgeuse and Antares .

She'd temped in that position on Betelgeuse and Prime David recommended her.