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Common terms and phrases
29th February Add for quotient add one day add the log Annual variation apparent Right Ascension Ascension and Declination August b+log barometer bearing and distance Bermuda colatitude common logarithm constant corr Correction of Longitude cosecant Cosine cotangent course day to Greenwich Declination is South degree Diff difference of latitude differences for 100 ecliptic Eddystone lighthouse Equation error find the Sun's five decimals Formulæ Given date Given Log Greenwich date heliocentric horizon horizontal parallax hour angle interval Leap logarithm mean noon mean Right Ascension mean sexagesimal second meridian miles Moon's Node multiplied Nautical Almanac O.II obliquity observed Planetary Corrections Polaris precession prime vertical Problem proper motion quantities refraction remainder Required the log Secular Decrease semidiameter sexagesimal second difference sextant side sidereal Sine Solar nutation subtracted from Greenwich Sun's Longitude Sun's Right Ascension supplement to 12 Tabular Right Ascension tangent triangle ΙΟ Ο.ΟΙ
Popular passages
Page 61 - In a right angled spherical triangle, the rectangle under the radius and the sine of the middle part, is equal to the rectangle under the tangents of the adjacent parts ; or', to the rectangle under the cosines of the opposite parts.
Page 69 - There will dx also be n — m constants in the resulting equation ; and as we can choose at pleasure the m constants we eliminate, we can form as many resulting equations containing n — m constants, as the number of combinations that can be formed out of n things taken »г at a time ; that is, n (n — 1) ... (n — m + 1) [m.
Page 43 - Page I contains, for Greenwich apparent noon of each day, The Sun's Apparent Right Ascension and Declination, and the Equation of Time. Adjoining columns contain the differences of these quantities for one hour. By multiplying this difference by the hours and parts of an hour from Greenwich apparent noon, and adding the amount to.