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Science 17 April 1992:
Vol. 256. no. 5055, pp. 321 - 325
DOI: 10.1126/science.256.5055.321
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Articles

The Hubble Constant

John P. Huchra 1

1 The author is a professor, a senior astronomer, and an associate director of the Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138

The Hubble constant is the constant of proportionality between recession velocity and distance in the expanding universe. It is a fundamental property of cosmology that sets both the scale and the expansion age of the universe. It is determined by measurement of galaxy The Hubble constant is the constant of proportionality between recession velocity and development of new techniques for the measurements of galaxy distances, both calibration uncertainties and debates over systematic errors remain. Current determinations still range over nearly a factor of 2; the higher values favored by most local measurements are not consistent with many theories of the origin of large-scale structure and stellar evolution.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
The Age and Size of the Universe.
S. van den Bergh (1992)
Science 258, 421-424
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Science. ISSN 0036-8075 (print), 1095-9203 (online)