| John Pinkerton - Africa - 1804 - 694 pages
...between two successive passage! of the same fixed star, ow:r ths meridian. These days are all equal. 31. A solar day is the interval between two successive passages of the sun over the meridian. These days are unequal, on account of the unequal motion of the nun in right ascension.... | |
| Charles Elsee - Arithmetic - 1866 - 300 pages
...weight of distilled water, the barometer being at 30 inches, and the temperature 62°. TIME. — A eolar day is the interval between two successive passages of the sun across the meridian of a place. Its length varies very slightly at different periods of the year, and its average length,... | |
| Joel Dorman Steele - Astronomy - 1874 - 424 pages
...The astronomer always reckons the hours of the day consecutively up to twenty-four. SOLAB THEE. — A solar day is the interval between two successive...around on its axis, it is going forward at the rate o . 360° in a year, or about 1° per day. When the earth has made a complete revolution, it must therefore... | |
| Daniel W. Fish - Arithmetic - 1874 - 296 pages
...month. The calendar year is divided as shown in the diagram : 1. The Solar Day is the interval of time between two successive passages of the sun across the meridian of any place. 2. The Mean Solar , Day is the mean or I average length of all ' the solar days in the \ year. 3. The... | |
| Lorenzo Fairbanks - 1875 - 472 pages
...midnight, and the Attronomieal Day, at noon of the civil day. 11. A Solar Day is the interval of time between two successive passages of the sun across the meridian of any place. 12. The solar days are of unequal length, on account of the unequal orbital motion of the earth and... | |
| Joel Dorman Steele - Astronomy - 1876 - 348 pages
...(see p. 38). The astronomer always reckons the hours of the day consecutively up to twenty-four. SOLAR TIME. — A solar day is the interval between two...around on its axis, it is going forward at the rate a'i 360° in a year, or about 1° per day. When the earth has made a complete revolution, it must therefore... | |
| Sir Thomas Muir - Arithmetic - 1878 - 378 pages
...other civilised countries, is the Mean Solar DAY. The solar day (that is, the interval between any two successive passages of the sun across the meridian of any place) and solar year are units supplied by nature, and must have been unconsciously and of necessity adopted... | |
| Richard S. Peale - Encyclopedias and dictionaries - 1890 - 548 pages
...which are called sidereal hours, and each of these into sixty portions, termed sidereal minutes, etc. A solar day is the interval between two successive...going forward at the rate of 360° in a year, or about i° per day. When the earth has made a complete revolution, it must, therefore, perform a part of another... | |
| Richard Glazebrook - Matter - 1893 - 208 pages
...earth round its axis is very nearly indeed constant, but owing to the motion of the earth round the sun the interval between two successive passages of the sun across the meridian of any place differs from day to day. The average of such intervals during a year is a mean solar day. A mean solar... | |
| Richard Glazebrook, Sir Richard Tetley Glazebrook - Hydrostatics - 1895 - 682 pages
...one such complete rotation is approximately constant. Owing to the motion of the earth round the sun the interval between two successive passages of the sun across the meridian of any place differs slightly from day to day. The average of such intervals during the year is the mean solar day.... | |
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