Astronomical Algorithms

aberration accuracy altitude angular apparent longitude approximate arcseconds ascending node ascension and declination astronomical units ATN2 Chapter 21 coefficient comet conjunction corresponding curve decimals difference disk distance Earth eccentricity ecliptic ecliptical coordinates ephemeris epoch equation equatorial coordinates error exactly Example expressed in degrees FK5 system function geocentric given instant gives heliocentric Hence horizon hour angle inferior conjunction integer interpolation iteration Julian centuries Julian Day Jupiter l₁ light-time longitude and latitude lunar magnitude Mars maximum mean anomaly mean equinox means of formula Mercury meridian method Moon Moon's negative Neptune nutation obliquity obtained orbital elements parallax perihelion periodic terms proper motion quantities QUICKSORT radians radius vector referred refraction result right ascension rotation satellites Saturn seconds sidereal solstice standard equinox star Sun's Table tion Uranus Venus VSOP VSOP 87 whence zero Δε