OB Associations

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


The study of M31’s OB associations started with Hubble’s (1929) work on NGC 206 (which he called a star cluster), as discussed in Chapter 2. More complete examination of this type of star group didn’t occur until about 30 years later. Recently, with the advent of sensitive digital detectors, optical studies of the OB associations are rapidly progressing.


Star Formation Star Cluster Luminosity Function Star Formation Rate Magnitude Limit 
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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