Science & Technology Studies

Dr Nicholas Kollerstrom's

Newton and
the Moon

Web site

This page offers historical material relating to theories of the Moon's motion, especially those of Newton and those surrounding him.

A Forgotten Solution to the Longitude Problem

- Introduction
- View the original source:
- Try a replica of Newton's Lunar Theory
- Download TMM Replica 2.0 directly
- Check the replica against modern estimates
- View worked example by Dunthorne, based on Newton's 1702 theory
- How Newton's Theory Worked
- The sequence of Newton's equations
- Who used it?
- Why seven steps?
- Its Equation of Centre
- Return of the epicycles
- Comparison with modern equations
- The Forgetting of Newton's "Theory of the Moon's Motion"
- From Horrocks to Halley: recomputing their work

(ZIP package in xls -- Microsoft Excel -- format, 13k)

download a recent program for comparison (ZIP in exe format, 30k)

- Newton's Lunar Mass Error
- The Paradox of 1713
- Newton's gravity theory: the tenuous link
- The Moon Test of 1684

- Introduction
- Replica of Flamsteed's Lunar Theory
- Download it directly (ZIP package in xls -- Excel -- format, 13k)
- Sequence of his theory plus a worked example

- Introduction
- Halley and the Saros cycle
- The Hollow World of Edmond Halley

- Horrocks and the Dawn of British Astronomy

- Links to sites in the history of astronomy
- Bibliography on Theories of Lunar Motion
- Send me comments via e-mail

The book "Newton's forgotten lunar theory, his contribution to the quest for longitude" (2000) by the author is published by Green Lion Press.

This site is a collaborative project between Dr Nicholas Kollerstrom and Dr Joe Cain in STS, UCL. Kollerstrom's research is supported by a post-doctoral research scholarship from the Leverhulme Foundation.