A solar day is the interval between two successive passages of the sun across the meridian of any place. If the earth were stationary in its orbit, the solar day would be of the same length as the sidereal ; but while the earth is turning around on its... Fourteen Weeks in Descriptive Astronomy - Page 2891874 - 336 pagesFull view - About this book
| John Pinkerton - Atlases - 1804
...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 (the elder.) - Arithmetic - 1866 - 275 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,... | |
| J. DORMAN STEELE, PH.D. - 1874
...The astronomer always reckons the hours of the day consecutively up to twenty-four., SOLAE TIME.— **-A solar day is the interval between two successive...around on Its axis? it is going forward at the rate** of 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
...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
...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 - 336 pages
...The astronomer always reckons the hours of the day consecutively up to twenty-four. SOLAR TIME. — **A solar day is the interval between two successive...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 - 357 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... | |
| Joel Dorman Steele - Astronomy - 1884 - 326 pages
...The astronomer always reckons the hour of the day consecutively up to twenty-four. Solar Time. — **A solar day is the interval between two successive...around on its axis, it is going forward at the rate** of 360° in a year, or about 1° per day. When the earth has made a complete rotation, it must therefore... | |
| Richard S. Peale - Encyclopedias and dictionaries - 1890 - 536 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...around on its axis, it is 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,... | |
| Richard Glazebrook - Matter - 1893 - 184 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... | |
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