Northern California History of Astronomy Luncheon and Discussion Association
Announcements of discussions (in Oakland, California), open to the public, on various astronomy history topics, and an archive of past discussions
Out of This World
Exhibition catalog for The Golden Age of the Celestial Atlas. Includes an historical essay and sample pictures.
Roemer and the First Determination of the Velocity of Light
Burndy Library online publication of 1940 article detailing the background and details of Roemer's work.
Rundetaarn (The Round Tower)
Astronomy in Denmark: Brahe, Roemer, Hertzsprung.
Russell A. Hulse - Nobel Lecture
The discovery of the binary pulsar.
Starry Messenger
Phase I of the Electronic History of Astronomy, developed in the Whipple Museum of the History of Science at Trinity College, Cambridge. Covers the history of instruments and techniques, themes such as astrology and calendar reform, and biographies of major historical astronomers.
The Àryabhatíya of Àryabhata
The oldest exact astronomic constant? The ratio of earth rotations to lunar orbits in Aryabhata's AD 498 writing.
The Babylonian Theory of the Planets
A substantial look at the subject, and a review of N. M. Swerdlow's book.
The Cosmic Microwave Background Radiation
Robert Woodrow Wilson Nobel Lecture.
The Manchester Astronomical Society History
The first hundred years, list of presidents, list of archived documents.
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