The Nautical Almanac and Astronomical Ephemeris for the Year ...order of the Lords Commissioners of the Admiralty, 1833 |
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Common terms and phrases
Aldebaran Aldebaran E Antares W APPARENT PLACES Apparent Right Ascension Aquarii Aquila Arietis Arietis W ASCENSION AND DECLINATION Astronomical Cancri Capricorni Ceti computed conjunction correction d h m Days disc Dist Earth Eclipse Emersion Ephemeris Equation Fomalhaut Fomalhaut W Frid Geminor Geminorum Geocentric Greenwich Mean Greenwich Transit Heliocentric Horizontal Parallax hour of Long inserted interval Jupiter E Jupiter Pollux Jupiter's Satellites Latitude Leonis Libræ LUNAR DISTANCES Mean Noon mean solar Meridian Longitude Month Moon I.
U.C. Moon II MOON'S RIGHT ASCENSION Name and Position Nautical Almanac nitude observed Occultations Ophiuchi Parallax Passage Pegasi Perihelion Piscium planet Point of Aries PRINCIPAL FIXED STARS R. A. Dec Sagittarii SATELLITES OF JUPITER Saturn E Saturn Spica Scorpii Semidiameter Semidur Sept shadow Sidereal Star's Name Sun's Tables Tauri Thur TRANSIT AT GREENWICH Tues UPPER TRANSIT Vect Venus SUN
Popular passages
Page 509 - Ascension, and the interval between the departure of any meridian from the mean Sun and its succeeding return to it is the duration of the mean solar day. Clocks and chronometers are adjusted to mean solar time ; so that a complete revolution (through 24 hours) of the hour hand of...
Page xv - Ricks, 14 Ark. 286. Of the time of the rising and setting of the sun and moon.
Page 130 - OF THE SATELLITES OF JUPITER are not visible this Month, JUPITER being too near to the SUN.
Page iii - ET CORRECTS, AUCTORE TOBIA MAYER : Or, NEW AND CORRECT TABLES OF THE MOTIONS OF THE SUN AND MOON.
Page 513 - Sidereal Time at Mean Noon is the angular distance of the First point of Aries, or the true Vernal Equinox, from the meridian, at the instant of Mean Noon: it is therefore the Right Ascension of the Mean Sun...
Page 463 - IN the Year 1835, there will be two Eclipses of the Sun, one of the Moon, and a Transit of Mercury.
Page 523 - Tables in the APPENDIX to the NAUTICAL ALMANAC for 1835 have been used, with the exception of Table II.
Page 509 - As the time deduced from observation of the true Sun is called true or apparent time, so the time deduced from the mean Sun, or indicated by the machines which represent its motion, is denominated mean time.
Page 496 - Correction is to be added to the approximate Greenwich Time when the Proportional ' Logarithms in the Ephemeris are decreasing, and subtracted when they are increating.
Page 509 - Astronomers, with a view of obtaining a convenient and uniform measure of time, have recourse to a mean solar day, the length of which is equal to the mean or average of all the apparent solar days in a year. An imaginary Sun, called the mean Sun, is conceived to move uniformly in the Equator with the real Sun's mean motion in Right Ascension...