Keywords: ephemeris, ephemerides, celestial mechanics, opposition, conjunction, astronomical software, ephemeris software, planetary ephemeris, planetary ephemerides, lunar ephemeris, lunar ephemerides, moon ephemeris, heliocentric ephemeris, geocentric ephemeris, topocentric ephemeris, planetary visibility, lunar visibility, solar eclipse, solar eclipse calculator, local circumstances of solar eclipses, eclipse maps, astrology ephemeris, Bright Star Catalogue, star data, opposition, conjunction, astronomical software, nodes, aphelion, perihelion, lunar eclipse, solar eclipse, lunar phase, moon phase, planetary conjunction, greatest elongations, equinoxes, solstices
2024年12月20日