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GP200 Astronomical Phenomena 2021
This publication provides a summary of astronomical events. It is published several years in advance and contains much of Section A of the corresponding Astronomical Almanac (GP100). This publication includes:Phases of the Moon, eclipses of the Sun and MoonPrincipal occultations, planetary phenomena, elongations and magnitudes of the planetsTimes of sunrise/set, moonrise/setTabulated equations of time, the declination of the Sun and the Greenwich hour angles of the pole stars Polaris and Sigma Octantis