Ursa Major

Ironically, the word Arctic comes from the ancient Greeks, who understood that the northernmost part of the earth lay under the stars of the constellation Ursa Major, the Great Bear. Although unaware of the polar bear, they called this region Arktikos, which means the country of the great bear. ... 

Figure 2.8 Constellation map for Ursa Major. (Reproduced by permission of Torsten Bronger)...

Figure 13.14 A star design. (The replicates are Mizar and Alcor in Ursa Major.) DF = 1, DF...

Yes, it s Mizar in the constellation Ursa Major, and it s actually a visual binary. When you look at Mizar with a telescope it appears to be a pair of stars in... 

Figure 5.7 Italian astronomer Giovanni Battista Riccioli in 1650 found that Mizar in Ursa Major was a visual binary that appeared to consist of two stars. Today we know that the star is a quadruple star, which is even more complex. And Castor in the Gemini constellation is actually a collection of six stars in a crazy gravitational orgy.

The Big Dipper, an easy to see constellation in the northern celestial hemisphere, was known to the ancient Greeks as the Bear and the Wagon and to the Romans as Ursa Major (the Great Bear). 

Does galaxy environment influence composition The Virgo cluster studies need to be followed up by larger samples in a wider variety of cluster environments. The spiral-rich Ursa Major cluster and the Coma cluster are two obvious choices for continued study. 

Astronomers use groups or patterns of stars called constellations as reference points to locate other stars in the sky. Familiar constellations include Ursa Major (also known as the big bear) and Ursa Minor (known as the little bear). Within the Ursa Major, the smaller constellation, The Big Dipper is found. Within the Ursa Minor, the smaller constellation. The Little Dipper is found. 

FIGURE P.1 Ursa Major after National Geografic (Putz, M. V., Mingos, D. M. R, Eds. (2012). Applications of Density Functional Theory to Chemical Reactivity, Structure and Bonding Series Vol. 149, Springer Verlag, Heidelberg-Berlin). 

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