An Elementary Treatise on Astronomy: In Two Parts. The First Containing a Clear and Compendious View of the Theory; the Second, a Number of Practical Problems. To which are Added, Solar, Lunar, and Other Astronomical TablesE. C. & J. Biddle, 1854 - 477 pages |
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Common terms and phrases
add log approximate argument of Latitude arguments ascension and declination astronomical axis body called centre circle column comet computed Consequently corrected corresponding cosine Cotang diameter diff diurnal motion dominical letter earth eclipse equal equatorial parallax equinox Evection EXAM formulæ fourth term full moon geocentric latitude given place Greenwich Greenwich mean heliocentric Hence horizon horizontal parallax hour angle hourly motion hourly variation interval log.cos logarithm longitude and latitude mean anomaly mean longitude mean new moon mean noon Mercury meridian minutes moon's longitude Moon's true motion in latitude motions in longitude Nautical Almanac nearly negative node nutation Obliq obtained perigee Philadelphia planet pole quantities radius vector refraction result right ascension satellites semidiameter sidereal sine solar subtract sun's longitude sun's mean taken from table tang tangent telescope true longitude