Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.3405g&link_type=abstract
American Astronomical Society, AAS Meeting #211, #34.05; Bulletin of the American Astronomical Society, Vol. 39, p.787
Astronomy and Astrophysics
Astronomy
Scientific paper
Following Haramundanis and Gaposchkin (this meeting) we investigate the 16th century calculation of longitude using the lunar-distance method. Aside from the limitations of pre-telescope astronomical observations, the accuracy of the lunar and solar ephemeris and the star catalogue control the accuracy of such calculations.
A comprehensive but selective comparison of several 16th century lunar and solar ephemerides (seven authors, 15 years) with modern models reveals the accuracy of these ephemerides to be about 0.55 degrees rms for the moon and 0.10 to 0.19 degrees rms for the sun. The comparison was made for ephemerides based on both the Ptolemaic (Alfonsine Tables) and Copernican (Prutenic Tables) models. The comparison also revealed the reference meridian for each ephemeris. The errors within each model are correlated, and the error signatures for all models are similar. These results hold for all the models considered.
Gaposchkin Edward
Haramundanis Katherine
No associations
LandOfFree
Sixteenth Century Lunar and Solar Ephemeris Accuracy and the Lunar-distance Method for Longitude Determination does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Sixteenth Century Lunar and Solar Ephemeris Accuracy and the Lunar-distance Method for Longitude Determination, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sixteenth Century Lunar and Solar Ephemeris Accuracy and the Lunar-distance Method for Longitude Determination will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1476529