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 Tables ...Kimber & Sharpless, 1842 - 471 pages |
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Common terms and phrases
affirmative altitude approximate argument argument of Latitude ascension and declination astronomical axis body called celestial sphere centre circle computed consequently corrected corresponding cosine Cotang Diff difference diurnal motion dominical letter earth equal equator equatorial parallax equinox Evection expressed fixed star formulæ full moon given place Greenwich heliocentric Hence horizon horizontal parallax hour angle hourly motion hourly variation interval logarithm longitude and latitude mean anomaly mean longitude Mercury meridian moon's longitude motion in longitude Nautical Almanac nearly negative node noon nutation obliquity observed obtained parallax parallel perigee perpendicular planet pole position quantity radius vector refraction revolution right ascension satellites semidiameter sidereal sine solar subtract sun's longitude sun's mean taken from table tang tangent telescope tides tion triangle true longitude tude Venus vernal equinox zenith distance