Harmonia Macrocosmica by Andreas Cellarius Atlas of the heavens as seen by the astronomers of the time of its 1661 printing: Copernicus, Ptolemy, Brahe, and Aratus. Entire book has been digitized and the images may be browsed or searched. http://www.lib.utah.edu/digital/cellarius.html

History and Philosophy of Western Astronomy The History chapter of an introductory astronomy course. http://www.astronomynotes.com/history/s1.htm

Jewish Astronomy, From Ancient to Modern Times Astronomy in Israel from Og's Circle to the Wise Observatory. http://wise-obs.tau.ac.il/judaism/jewish_astro.html

The Àryabhatíya of Àryabhata The oldest exact astronomic constant? The ratio of earth rotations to lunar orbits in Aryabhata's AD 498 writing. http://www.jqjacobs.net/astro/aryabhata.html

Astronomy in Japan Historical and modern Japanese astronomy, and its place in Japanese culture http://www2.gol.com/users/stever/jastro.html

The Star of Bethlehem An investigation of the science and history which bear on the mysterious star said to have accompanied the advent of Christ. http://www.bethlehemstar.net/

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 http://nchalada.org/

Rundetaarn (The Round Tower) Astronomy in Denmark: Brahe, Roemer, Hertzsprung. http://www.rundetaarn.dk/engelsk/observatorium/history.htm

Hindu Cosmological Time Cycles An accurate calendar and the progenitor of the sexagesimal (base 60) "degree, minutes, seconds" measurement system. http://www.aaronsrod.com/time-cycles/index.html

History of Astronomy in Ancient India Eclipse calculation, heliocentric theory, size of the world. http://india.coolatlanta.com/GreatPages/sudheer/astro.html

History of Astronomy Pages Frederik Kaiser (1808-1872) and the professionalisation of Dutch astronomy; The "Lost Letters" of J.C. Kapteyn (1851-1922); Many history of astronomy and history of science links with a Dutch flavour. http://www.strw.leidenuniv.nl/~heijden/history.html

Historical Astronomy Division American Astronomical Society division devoted to history, with a link to pages on the history of the society itself. http://www.aas.org/~had/had.html

A Brief SETI Chronology A timeline of the search for extraterrestrial intelligence, from Morrison and Coconni to SETI@home. http://www.setileague.org/general/history.htm

A Science Odyssey - Physics and Astronomy PBS articles about 20th century astronomy and physics. http://www.pbs.org/wgbh/aso/databank/physastro.html

Electronic Newsletter for the History of Astronomy Complete archive and subscription information. http://www.astro.uni-bonn.de/~pbrosche/aa/enha/

Biennial History of Astronomy Conferences Workshops at Notre Dame, papers presented, abstracts, group pictures of attendees. http://www.nd.edu/~histast4/index.html

From Stargazers to Starships Tutorial/historical exposition of the motion of Earth in space, Newtonian mechanics and spaceflight, on a high school level. http://www.phy6.org/stargaze/Sintro.htm

The Babylonian Theory of the Planets A substantial look at the subject, and a review of N. M. Swerdlow's book. http://www.maa.org/reviews/babplanets.html

The Manchester Astronomical Society History The first hundred years, list of presidents, list of archived documents. http://www.u-net.com/ph/mas/history.htm

Atlas Celeste A rare celestial atlas discovered in the library of the Manchester Astronomical Society. http://www.u-net.com/ph/mas/bevis/home.htm