SUNDI, © 2003-2006

Keywords: sundi dial sundial cadran astrolabe software freeware applet download design plan calculate calculation gnomon sun solar sunrise sunset moon phase coordinates cartesian co-ordinate system distance au position center celestial principal plane meridian parallel equator altitude azimuth zenith declination right ascension mean true geometric apparent anomaly eccentricity obliquity equator pole ecliptic parallax nutation vector radius orbit astronomical geographical geocentric orthographic horizon horizontal vertical declining inclining cylindrical garden stone brass paper equatorial polar west east north south calendar almanac clock angle radian arc grade degree arc-minutes arc-seconds pi hour minute second date julian gregorian easter day latitude longitude equation time zone sideral universal ephemeris greenwich term armillary analemma analemmatic phenomena solstice equinox shadows zonwvlak book picture amateur maker builder designer associaation meeus daffet smith sundi ivan krastev sonnenuhr babylonische italische sonne jahr mez woz zeit wahre ortszeit mitteleuropäische mittagslinie zeitzone analemma-kurve bifilare deklination siderale zeit äquatorialsonnenuhr analemmatische skaphe armillarsphären deklinationslinien gnomonik