## Lunar and Time Tables ...Author and published by] J. Imray, 1849 - 188 pages |

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### Common terms and phrases

12 hours 1st arc 2d arc 59 Logarithmic Sines altitude was taken Apparent Distance April April 17 Arc for Table Auxiliary Arc Calculation centre Chronometer showed corresponding Cosecant Sine Tangent D's Corr D's Hor daily rate Degrees Departure of Distance Ditto EXAMPLE fast of Greenwich February 20 find the correction find the mean finding the Longitude fixed star Greenwich mean Half-cosine Half-sine height Hence index error July July 20 June June 14 June 23 Latitude LESS APPARENT ALTITUDE limb was observed Lunar Distance meridian distance Moon's altitude Moon's horizontal parallax Nautical Almanac nearest limbs noon O's ALTITUDE observer's eye original error Planet prime vertical Proportional Logarithms Refraction Required the Longitude Required the true right ascension second arcs semi-diameter sextant ship Sine Tangent Cosecant Star's Sun and Moon Sun's altitude Sun's declination Sun's lower limb Table contains Tangent Cosecant Sine true altitude true distance

### Popular passages

Page 164 - That is, the sines of the sides of a spherical triangle are proportional to the sines of the opposite angles.

Page 180 - ... utmost utility in determining the position of remote and prominent objects, whether on land or at sea. The whole illustrated by numerous diagrams, showing the method of constructing and calculating the several cases and varieties treated of in the work. By W.

Page 1 - ... exceeds 24 hours, take 24 hours from it, and the remainder will be the time at Greenwich past noon of the following day.

Page 171 - With my best wishes for your success, I remain, MY DEAR SIR, Yours very truly, ALEXANDER ANDERSON, LL.D.

Page 60 - ADD TOGETHER THE LOGARITHMS OF THE SECOND AND THIRD TERMS, AND FROM THEIR SUM SUBTRACT THE LOGARITHM OF THE FIRST...

Page 3 - The civil day, which is that used by the generality of mankind, begins at midnight, and ends at the midnight following : it is divided into two parts of 12 hours each ; the first...

Page 171 - A COLLECTION OF EXAMPLES Of the Applications of the Differential and Integral Calculus, By GEORGE PEACOCK, AMFRS &c.; And of the Applications of the Calculus of Finite Differences, By JFW HERSCHEL, AMFRS &c.

Page v - I cannot adequately express, the letter which you did me the honour to address to me on the 22nd instant.

Page 3 - The civil day, which is that adopted for the usual purposes of business, begins at midnight, and ends at the midnight following ; it is divided into two parts of 12 hours each ; the first 12 are marked AM, signifying ante meridiem, ie before the meridian or noon; and the other 12 are marked PM, signifying post meridiem, ie after the meridian or noon.

Page 180 - SURVEYING; containing full and detailed solutions of all the most important cases of triangulation that usually occur in surveying a country or a sea coast ; the principles herein discussed being of the utmost utility in determining the position of remote and prominent objects, whether on land or at sea. The whole illustrated by numerous diagrams, showing the method of constructing and calculating the several cases and...