Holiday in Acre – Acre Travel for II. The Light Curve of C/ P McNaught, International Comet Quarterly Marcus points out that, of the thirteen comets counted great by Bortle in his study of great comets John E. Bortle, Great Comets in History, Sky and Telescope [ nine passed between Earth and the Sun, producing good forward-scattering geometry, and eight had phase angles peaking at between and degrees, with six of them having phase angles peaking at between and degrees Background and Model, Assuming n and the latest possible date of irst observation. If n and the comet was spotted at the latest possible date, the comet would have had zero magnitude or greater from May , BC, to February , BC, or over months. See Seargent, Comets Vagabonds of Space on the Great Comet of This was one of the most frequently cited extracanonical texts in the history of the early church Harry O. Maier, Ignatius Ephesians in Prayer from Alexander A Critical Anthology, ed. Mark Christopher Kiley [London Routledge, , J. Holiday in Acre – Acre Travel 2016.