Please note that this webpage is still under construction!
HST Key Project on Extragalactic Distance Scale:
The goal of this project is to measure the Hubble constant with a 10% accuracy.
We are finally finishing up this project this spring, which started in 1984.
Tip of the Red Giant Branch as a Distance Indicator:
The brightest RGB stars turn out to be excellent distance indicators
as their luminosity if very insensitive to age and metallicity.
I have been exploring this method, as another probe to explore the
structures and dynamics of galaxies in the Local Supercluster.
Others....
Go to: [ NOAO Scientific Staff ]
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[ CTIO ]
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[ NSO ]
[ USGP ]
NOAO is operated by the Association of U niversities for Research in Astronomy (AURA), Inc. under cooperative agreement with the National Science Foundation
Posted: 06Dec1996