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Castor
Table of Contents
Introduction References & Edit History Related Topics
Images & Videos
Castor and Pollux
Why do twins represent Gemini?
Quizzes
View of the Andromeda Galaxy (Messier 31, M31).
Astronomy and Space Quiz
The orbits of the planets and other elements of the solar system, including asteroids, Kuiper belt, Oort cloud, comet
Space Odyssey
Ursa major constellation illustration art. (Big Dipper) stars, space, night sky)
Stars: Explosions in Space
1 July 2002: The Solar and Heliospheric Observatory (SOHO) satellite reveals a massive solar eruption more than 30 times the Earth's diameter. The eruption formed when a loop of a magnetic field over the surface of the Sun trapped hot gas.
Brightest Star in the Solar System
Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.
All About Astronomy
Related Questions
Read Next
Colorful winter sunset
What's the Difference Between a Solstice and an Equinox?
M17, the Swan Nebula, is a star-making cloud in the constellation Sagittarius.
How Do We Know How Far Away the Stars Are?
1 July 2002: The Solar and Heliospheric Observatory (SOHO) satellite reveals a massive solar eruption more than 30 times the Earth's diameter. The eruption formed when a loop of a magnetic field over the surface of the Sun trapped hot gas.
6 Questions About the Sun Answered
Infinite space background with silhouette of telescope. This image elements furnished by NASA.
Telescopes: Seeing Stars
Discover
Abstract vector hi speed internet technology background
History of Technology Timeline
Red Army (Soviet) soldiers in the Russian Revolution.
Russian Revolution Timeline
Prince. musician Prince (Prince Rogers Nelson). Prince WELCOME 2 AMERICA tour. Exclusive North American Performances, 2010-11
7 Celebrities You Didn’t Know Were Inventors
Town of Sisimiut located on the coast of the Davis Strait on Kangerluarsunnguaq Bay, Greenland
The Largest Islands in the World
Andrew Jackson delivering a speech while on his way to Washington, D.C., for his inauguration in 1829. From Harper's Weekly, 1881.
5 Remarkably Close U.S. Presidential Elections
Flag of Bhutan
6 Small Kingdoms of the World
Chemical equations Chemical reactions chemistry
How Do You Balance a Chemical Equation?

Castor: References & Edit History

Article Contributors

Primary Contributors

Other Encyclopedia Britannica Contributors

Article History

Type Description Contributor Date
Link added. Jun 11, 2024
Add new Web site: The Nine Planets - Castor (α Gem) Facts. Nov 10, 2023
Media added. Jun 22, 2023
Add new Web site: Space.com - Castor: The Sextuplet Set of Stars. Aug 25, 2022
Article revised and updated. Feb 18, 2009
Added new Web site: Department of Astronomy of University of Wisconsin-Madison - Castor. Aug 06, 2007
Added new Web site: Department Astronomy of University of Illinois at Urbana Champaign - Castor. Aug 06, 2007
Article revised and updated. Mar 09, 2007
Article added to new online database. Jul 20, 1998
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