CASTOR, in Astronomy

kăsˈtər, bright star in the constellation Gemini; Bayer designation α Geminorum; 1992 position R.A. 7h34.1m, Dec. +31°54′. Slightly dimmer than Pollux, with which it forms the Twins, Castor has an apparent magnitude of 1.58, which still makes it one of the 25 brightest stars in the sky. Castor is actually a six-star system, being a visual triple each component of which is a binary star; the three components are an eclipsing binary and a pair of spectroscopic binaries. The two brightest components are white, main-sequence stars of spectral classes A1 and A5. The system is about 50 light-years distant.

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The Columbia Encyclopedia, Sixth Edition Copyright© 2004, Columbia University Press. Licensed from Lernout & Hauspie Speech Products N.V. All rights reserved.

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Questia Books and Articles on: Castor in Astronomy
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books on: Castor in Astronomy  - 45 results

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1.
Popular Astronomy: Being the New Descriptive Astronomy
Book by Joel Dorman Steele; American Book Company, 1899
Subjects: Astronomy
...341 . Asteroids, or Small Planets, 161 . Astrology, 21 . Astronomy, history of, 15 . of the invisible, 251 . poetry of, 11...252 , 274 . Capricornus, 247 . Cas-si-o-pe ia, 230 . Castor, 236 Celestial sphere, 33 . Centaurus, 249 . Ce pheus...
2.
Essays in Astronomy
Book by Sir Robert S. Ball, William Harkness, Sir John Herschel, William Huggins, Marquid de Laplace, Ormsby McKnight Mitchel, Richard Proctor, M. Schiaparelli, Edward Singleton Holden; D. Appleton & Company, 1900
Subjects: Astronomy
...the, 258 . Copernicus, system of astronomy, 24 , 187 . Corona, of the sun, 405...ocean, 144 , 151 , 154 , 155 . Eskimos, astronomy of the, 256 . Ether, luminiferous...micrometer, 189 . Geminorum, , see Castor; , see Pollux. Geodesy, development...
3.
Makers of Astronomy
Book by Hector MacPherson; Clarendon Press, 1933
Subjects: Astronomers, Astronomy--History
...very strong band could be recognized in the green. . . . Castor gives a spectrum similar to that of Sirius, and in spite...Munich but in the laboratory at Heidelberg that spectroscopic astronomy was to be born. It was Gustav Robert
4.
A Dictionary of Astronomy
Book by Ian Ridpath; Oxford University Press, 1997
Subjects: Astronomy--Dictionaries
...December 13 from a radiant at RA 7h 28m, dec. +32 , near Castor. Activity is seen from December 7 to 15, and is produced...managed by the Association of Universities for Research in Astronomy. Gemma Alternative name for the star * Alphecca Alpha Coronae...
5.
Sharing the Sky: A Parent's and Teacher's Guide to Astronomy
Book by David H. Levy, Larry A. Lebofsky, Nancy R. Lebofsky; Perseus Publishing, 1997
Subjects: Astronomy--Study And Teaching (Elementary)
...Twins jeh-mih-knee With its two dramatic stars, Pollux and Castor, Gemini is easy to find, especially when it culminates at...as gods, men, animals, or plants. The Greeks called them Castor and Pollux, and used their names for the constellations two...
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journal articles on: Castor in Astronomy  - 6 results

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1.
The Sky
Journal article by Ray Forma; Teaching Science, Vol. 53, 2007
Subjects: Astrographic catalog and chart--Usage, Astronomical charts--Usage, Astronomy--Equipment and supplies, Sky--Observations
...the timing of successful astronomy evenings for students. The best time for an astronomy evening is usually six...05:48 UTC 29 March--Castor Pollux due N 8 April...Urania, the Greek Muse of Astronomy. He travelled to various...
2.
Caprarola's Sala Della Cosmografia
Journal article by Mary Quinlan-Mcgrath; Renaissance Quarterly, Vol. 50, 1997
Subjects: Architecture, Renaissance--Appreciation, Art, Renaissance--Appreciation
...reference to the constellation of Gemini as Castor and Pollux ILLUSTRATION FOR FIGURE 9 OMITTED...Carlo, "of happy memory," were like Castor and Pollux. Caro drew out the analogy...other and reinforce each other, just as Castor and Pollux had. Caros motto, "Ortu...
3.
Wakes of War: Contrails and the Rise of Air Power, 1918-1945 Part I-Early Sightings and Preliminary Explanations, 1918-1938
Journal article by Donald R. Baucom; Air Power History, Vol. 54, 2007
Subjects: Air forces--History, Air forces--Military aspects, Air forces--Services, Condensation trails--Forecasts and trends, Condensation trails--Usage, Scientific American (Periodical)--Services, Spanish Civil War, 1936-1939, United States. Air Force--History, United States. Air Force--Services
...engine. The lubricant used in rotary engines was castor oil. As a result, McCutcheon notes, pilots...engines often suffered from the laxative effects of castor oil because of their breathing castor oil fumes and otherwise ingesting oil thrown...
4.
Exercise for Mind and Body: Giulio Mancini, Collecting, and the Beholding of Landscape Painting in the Seventeenth Century
Journal article by Frances Gage; Renaissance Quarterly, Vol. 61, 2008
Subjects: Art, Renaissance, Exercise--History, Exercise--Methods, Mancini, Giulio--Works, Painting (Art)--Health aspects, Painting (Art)--Psychological aspects, Painting--Health aspects, Painting--Psychological aspects, Physicians--Works, Renaissance art, Walking--Health aspects
...the sixteenth-century papal physician Castor Durante (1529-90) did not remark upon...their study of botany, zoology, and astronomy. The delight taken in observing how artists...102-31. London, 1999. Durante, Castor. Il tesoro della sanita. Venice, 1586...
5.
The Pinson Observatory
Journal article by Charles H. McNutt; Southeastern Archaeology, Vol. 24, 2005
Subjects: Coastal plains
...Sauls. This is appropriate to the rising of Gemini, with Castor 2 above the horizon at 49 and Pollux slightly to the south...permission to cite his unpublished commentary on Hopewell astronomy. I am particularly indebted to Robert Mainfort, who...
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magazine articles on: Castor in Astronomy  - 24 results

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1.
What's Your Sign?
Magazine article; Natural History, Vol. 102, April 1993
Subjects: Astrology, Astronomy, Constellations, Planets
...distributes a pamphlet called "Astronomy vs. Astrology," which...all month with the stars Castor and Pollux as reference...Cleere writes on popular astronomy and is a founding member...preserving the skies for astronomy.
2.
A Change of Scenery
Magazine article; Natural History, Vol. 103, September 1994
Subjects: Astronomy, Autumnal equinox
...concerned about the utility of astronomy, today these "unprofitable...spending tax dollars on astronomy. At the United States...far from the twin stars Castor and Pollux in Gemini...and writes on popular astronomy.
3.
Skylog
Magazine article by Joe Rao; Natural History, Vol. 119, July 2011
Subjects: Astronomy, Earth, Planets, Stars & galaxies, Venus
...to be considered one of the pioneers of astronomy. From 1751 through 1753, this modest...of Mars with Geminis "twin stars," Castor and Pollux. This morning the planet passes...below and to the left of the Moon. 16 Castor, Pollux, and - somewhat farther off...
4.
Planet X
Magazine article; Natural History, Vol. 102, June 1993
Subjects: Astronomy, Planets
...neighbor just below the twin stars, Castor and Pollux, in Gemini. Venus is our...later. Gail S. Cleere writes on popular astronomy and is a founding member of the International...dedicated to preserving the night skies for astronomy.
5.
A View outside the Galaxy
Magazine article; Natural History, Vol. 103, October 1994
Subjects: Astronomy, Stars & galaxies
...planet between the star Procyon, in Canis Minor, and Geminis Castor and Pollux. On the morning of the 28th, Mars is 7deg above...Cleere lives in Washington, D.C., and writes on popular astronomy. ERRATUM: In "Moonstruck" ("Celestial Events," April...
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newspaper articles on: Castor in Astronomy  - 10 results

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1.
ARCHIVE: Star-Studded Event, despite the Clouds; Night Sky for April Gill Pilfold of Birmingham Astronomical Society Reports on Latest and Forthcoming Events
Newspaper article; The Birmingham Post (England), April 1, 2006
Subjects: Astronomy--Calendars
...enthusiasts willing to share their passion for astronomy more than made up for the lack of stars...groupings have now sunk into the west. Only Castor and Pollux, the Heavenly Twins in the...Find out more from www.birmingham-astronomy.co.uk. Molly Yeardsley, nine...
2.
NIGHT SKY FOR MARCH: When a Whole New Universe Appeared through a Home-Made Telescope; BIRMINGHAM ASTRONOMICAL SOCIETY
Newspaper article; The Birmingham Post (England), February 26, 2005
...centres around two lead stars, Castor and Pollux of magnitude 1...a high magnification splits Castor into two sparkling white stars...own companions so this means Castor actually consists of six stars...website on: www.birmingham-astronomy.co.uk Birmingham Astronomical...
3.
Movies; Movie Mini-Reviews
Newspaper article by Gary Arnold; The Washington Times, July 31, 1997
...orphan named Ellie Arroway, who has dedicated herself to radio astronomy. Employed at the Very Large Array in New Mexico, she is on...blithely depraved villain Nicolas Cage, a terrorist named Castor Troy, that he agrees to borrow Troys surgically removed face...
4.
Movies; Movie Mini-Reviews
Newspaper article by Gary Arnold; The Washington Times, July 17, 1997
...orphan named Ellie Arroway who has dedicated herself to radio astronomy. Employed at the Very Large Array in New Mexico, she is on...blithely depraved villain Nicolas Cage, a terrorist named Castor Troy, that he agrees to borrow Troys surgically removed face...
5.
Weekend: Close Encounter with Saturn's Largest Moon; the Night Sky for October from the Birmingham Astronomical Society
Newspaper article; The Birmingham Post (England), September 25, 2004
...fine sight in a telescope. Close by lie the heavenly twins, Castor and Pollux in Gemini. Uranus and Neptune are the only planets...on the march. Check out our website at: www.birmingham-astronomy.co.uk Huygens, a European Space Agency lander carried...
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encyclopedia articles on: Castor in Astronomy  - 2 results

 
 
1.
Castor , in Astronomy
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
CASTOR , in astronomy kas t r, bright star in the constellation...Pollux , with which it forms the Twins, Castor has an apparent magnitude of 1.58...of the 25 brightest stars in the sky. Castor is actually a six-star system, being...
2.
Pollux , in Astronomy
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
POLLUX , in astronomy brightest star in the constellation Gemini ; Bayer designation Beta...20 brightest stars in the sky. Pollux is the brighter of the Twins, Castor appearing about half as bright...


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