Articles on the history of ancient astronomy

Published Articles:

• “Mean Motions and Longitudes in Indian Astronomy”, Archive for History of Exact Sciences, (in press, 2008). The article is also available at www.springerlink.com.
• “The Second Lunar Anomaly in Ancient Indian Astronomy”, Archive for History of Exact Sciences, 61 (2007) 147-157. The article is also available at www.springerlink.com.
• “Ancient Declinations and Precession”, DIO: the International Journal of Scientific History, 13.3 (2006). The article is also available at www.dioi.org.
• “Analysis of the Farnese Globe”, Journal for the History of Astronomy 37 (2006) 87-100.
• “Ptolemy’s Planetary Mean Motions Revisited”, co-authored with Alexander Jones, Centaurus, 47 (2005) 226-235.
• “The equant in India: the mathematical basis of Indian planetary models”, Archive for History of Exact Sciences, 59 (2005) 563-576. The article is also available at www.springerlink.com.
•  “Hipparchus’ Eclipse Trios and Early Trigonometry”, Centaurus, 47 (2005) 163-177.
• “Comment on the Origin of the Equant papers by Evans, Swerdlow, and Jones”, Journal for the History of Astronomy 36 (2005) 1-6.
• “Ptolemy’s Treatment of the Outer Planets”, Archive for History of Exact Sciences, 59 (2005) 169-187. The original publication is available at www.springerlink.com.
• “Computer Animations of Greek and Arabic Planetary Models”, Journal for the History of Astronomy 35, 225-228 (2004).
•  “The Depth of Association Between the Ancient Star Catalogues”, Journal for the History of Astronomy 34, 227-230 (2003).
• Letter to Isis, Isis, 93 (2002) 649.
• “On the Clarity of Visibility Tests”, DIO: the International Journal of Scientific History, 12 (2002). The article is also available at www.dioi.org.
• “The Measurement Method of the Almagest Stars”, DIO: the International Journal of Scientific History,12 (2002). The article is also available at www.dioi.org.
• “Ancient Solutions of Venus & Mercury Orbits”, DIO: the International Journal of Scientific History,11.3 (2002). The article is also available at www.dioi.org.
• “Associations Between the Ancient Star Catalogues”, Archive for History of Exact Sciences, 56 (2002) 435-450. The original publication is available at www.springerlink.com.
• “Hipparchus’ Coordinate System”, Archive for History of Exact Sciences, 56 (2002) 427-433. The original publication is available at www.springerlink.com.
• "Dating the Almagest Star Catalogue Using Proper Motions: A Reconsideration," Journal for the History of Astronomy, 33, 45-55, (2002).

Conference Talks:

· “Mean Motions and Longitudes in Indian Astronomy” , NDVIII slides (presentation version), (July 23, 2007).

· “The History of the Second Lunar Anomaly” , NDVIII slides (presentation version), (July 27, 2007).

· “Who Knew What, and When? The Timing of Discoveries in Early Greek Astronomy”, NDVII talk (written version), (July 9, 2005).

· “Who Knew What, and When? The Timing of Discoveries in Early Greek Astronomy”, NDVII slides (presentation version), (July 9, 2005).

· “Indian Planetary Theories and Greek Astronomy”, NDVII Thursday workshop (presentation version), (July 7, 2005).

· “New Results on Ancient Star Catalogs”, Notre Dame Workshop talk, (June 22, 2003).

· “The Zodiacal Armillary Sphere”, Notre Dame Workshop talk, (June 21, 2003).

Discussion of the Farnese Globe