Optical Structure

  • Paul Hodge
Part of the Astrophysics and Space Science Library book series (ASSL, volume 176)


The optical structure of M31 provided one of the earliest puzzles about this galaxy and it has continued to present us with intriguing questions. It took good photographs to show that the object has a spiral shape and it has taken a number of more sophisticated techniques to discover the more subtle aspects of its structure. This chapter begins, as a way of introducing the development of the field, with a brief survey of the various techniques used.


Major Axis Minor Axis Position Angle Spiral Galaxy Surface Brightness 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media Dordrecht 1992

Authors and Affiliations

  • Paul Hodge
    • 1
  1. 1.Department of AstronomyUniversity of WashingtonSeattleUSA

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