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Article Contents

ABSTRACT

1.INTRODUCTION

2.OBSERVATIONS

2.1.A brief history

2.2.HST observations

2.3.A compilation and estimate of the intrinsic dispersion in M⁰_V

3.THE PRIMARY UNCERTAINTIES

3.1.Local calibrators

3.2.Universality

3.3.Extinction

3.4.Effect of "peculiar" velocities on the calculation of H₀

3.5.Error estimate

4.THEORY (OR LACK THEREOF)

5.ESTIMATES OF H₀

5.1.A new estimate of H₀ using the Fornax cluster

6.SUMMARY

6.1.Observing strategies

6.2.Future Work

6.3.Conclusions

REFERENCES