Allan Sandage


Allan R. Sandage is an astronomer who, in the 1950's, measured the rate of the expansion of the Universe, Hubble's constant (H), which he calculated to be 50 km/sec/mpc. From this, Sandage estimated of the age of the Universe (T) to be 19.2 billion years [T = 2/3 x (1/H) ]. These calculations have changed through the years and now, H=~ 75 (T=12.9 billion years) is more generally accepted. Sandage also discovered quasars in 1964.


Site Map |Category Main Page | About Us | All text is available under the terms of the GNU Free Documentation License. External sites are not endorsed or supported by this site. Copyright © 2003 All Rights Reserved.