Alcor
[al-kawr]
- a star, the fifth-magnitude companion of Mizar in the handle of the Big Dipper.
Show More
Origin of Alcor
perhaps < Arabic al-khawr the low ground
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for alcor
Historical Examples
Alcor (al´-kôr), g Ursæ Majoris, "the cavalier" or "the rider."
A Field Book of the StarsWilliam Tyler Olcott
Its distance is a little over half that between Mizar and Alcor.
Astronomy with an Opera-glassGarrett Putman Serviss
They saw and named Alcor, thousands of years before telescopes were invented, and long before there were any books to help them.
Earth and Sky Every Child Should KnowJulia Ellen Rogers
Just above it is a very small star that astronomers call Alcor, or the rider.
The naked eye perceives near it a smaller star, named Alcor.
Pleasures of the telescopeGarrett Serviss