First Page | Meta Content | |
---|---|---|
![]() | Document Date: 2011-07-20 12:39:10Open Document Share Result on FacebookCompanyHertz / /OrganizationHarvard College / NASA Astrophysics Data System ASTRONOMICAL SOCIETY OF THE PACIFIC / Astronomical Society of the Pacific / National Aeronautics and Space Administration / Carnegie Institution of Washington Mount Wilson Observatory / /PersonHans G. Hertz / /SocialTag |