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A comparison of the Andromeda and Milky Way galaxies

Published online by Cambridge University Press:  04 August 2017

Paul Hodge
Paul Hodge*
Affiliation:
Astronomy Department, University of Washington, Seattle, WA

Abstract

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A comparison of some of the basic properties of M31 and the Milky Way indicates that in almost every respect M31 is larger than the Galaxy. It is more luminous, redder, more massive, and of earlier Hubble type. A detailed comparison of the spiral structure, based on optical tracers, for comparable areas in the outer parts of each galaxy shows differences in the arm spacings, in density enhancement, and in pitch angle.

Information

Type
PART II: COMPOSITION, STRUCTURE AND KINEMATICS
Information
Symposium - International Astronomical Union , Volume 106: The Milky Way Galaxy , 1985 , pp. 423 - 430
Copyright
Copyright © Reidel 1985 

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