 | Thomas Liddell Ainsley - 1864 - 360 pages
...parallel. A uniform measure of time is obtained by the invention of the Mean Solar Dai/. MEAN SOLAB DAY is the interval between two successive transits of the mean sun over the same meridian ; it begins when the mean sun is on the meridian. This fictitious body is conceived... | |
 | William Thomas Read - Nautical astronomy - 1869 - 176 pages
...solar day is the interval between two successive transits of the true Sun across the same meridian. 33. A mean solar day is the interval between two successive transits of the Mean Sun. 34. A sidereal day is the interval between two successive transits of the 1st point of aries. 35. Equation... | |
 | Thomas Liddell Ainsley - 1869 - 450 pages
...points they are parallel. A uniform measure of time is obtained by the invention of the Mean Solar Day. MEAN SOLAR DAY is the interval between two successive transits of the mean mn over the same meridian ; it begins when the mean sun is on the meridian. This fictitious body is... | |
 | Henry Evers - Nautical astronomy - 1873 - 152 pages
...between two successive transits of a celestial body across the same meridian. 48. Mean Solar Day. — A mean solar day is the interval between two successive transits of the mean sun over the same meridian. 49. Mean Time is time measured and indicated by the mean sun. It may also be... | |
 | Thomas Liddell Ainsley - 1880 - 482 pages
...they are parallel. A uniform measure of time is obtained by the invention of the Mean Solar Day. 303. Mean Solar Day is the interval between two successive transits of the mean sun over the same meridian ; it begins when the mean sun is on the meridian. This fictitious body is conceived... | |
 | Charles Leander Doolittle - Interpolation - 1885 - 664 pages
...intervals of time between each two successive transits over the same branch of the meridian will be equal. A MEAN SOLAR DAY is the interval between two successive transits of the second fictitious sun, or the mean sun over the upper branch of the meridian. THE MEAN SOLAU TIME at... | |
 | Nathaniel Bowditch - Nautical astronomy - 1888 - 704 pages
...uniform motion in the equinoctial. Art. 21в» Mean time is the hour-angle of the mean sun. A mean day is the interval between two successive transits of the mean sun over the meridian. Alean noon is the instant when the mean sun's hour-circle coincides with the meridian.... | |
 | William Carpenter Pendleton Muir - Nautical astronomy - 1906 - 756 pages
...true sun in the ecliptic, and the time measured by the motions of this mean sun is called mean time. A mean solar day is the interval between two successive transits of the mean sun over the upper branch of the same meridian, and mean solar time at a given place is the hour angle... | |
 | William Carpenter Pendleton Muir - Nautical astronomy - 1906 - 754 pages
...true sun in the ecliptic, and the time measured by the motions of this mean sun is called mean time. A mean solar day is the interval between two successive transits of the mean sun over the upper branch of the same meridian, and mean solar time at a given place is the hour angle... | |
 | Radio - 1917 - 1082 pages
...navigator is the apparent solar day. Mean Time Mean time is the hour angle of the mean sun. A mean day is the interval between two successive transits of the mean sun over the meridian. Mean noon is the instant when the mean sun's hour angle coincides with the meridian.... | |
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The mean sun is an imaginary sun which moves to the eastward in the equinoctial at a uniform rate equal to the average rate of the true sun in the ecliptic. 
