 | William Robert Martin - 1899 - 474 pages
...between apparent and mean time. Sidereal time is the hour angle of the first point of Aries. An apparent solar day is the interval of time between two successive transits of the sun over the same celestial meridian. A mean solar day is the interval of time between two successive... | |
 | Edward Singleton Holden - 1899 - 484 pages
...same star (sidereus is the Latin for a star or a group of stars) over the same celestial meridian. A solar day is the interval of time between two successive transits of the true Sun over the same celestial meridian. It is longer than a sidereal day, because the Sun appears... | |
 | William Wallace Campbell - 1899 - 288 pages
...two will pass through the vernal equinox at the same instant. The second body is called the mean sun. A mean solar day is the interval of time between two successive upper transits of the mean sun over the same meridian. The hour angle of the mean sun is the mean time.... | |
 | Eugene Lamb Richards - 1901 - 188 pages
...a very large sphere of which the center is the center of the earth. Apparent Solar Day. An apparent solar day is the interval of time between two successive transits of the sun over the Mean Solar Day. A mean solar day is the interval of time between two successive transits... | |
 | William Carpenter Pendleton Muir - 1906 - 756 pages
...hour angle of the first point of Aries, reckoned as already explained for hour angles. The apparent solar day is the interval of time between two successive transits of the true sun over the upper branch of the same meridian, and apparent time at any instant at a given place... | |
 | William Carpenter Pendleton Muir - 1906 - 754 pages
...hour angle of the first point of Aries, reckoned as already explained for hour angles. The apparent solar day is the interval of time between two successive transits of the true sun over the upper branch of the same meridian, and apparent time at any instant at a given place... | |
 | Harold Pender - 1910 - 366 pages
...such a pendulum making 86,400 oscillations in a mean solar day; this unit is called the second. The solar day is the interval of time between two successive transits of the sun across the meridian of the earth at the point of observation; this interval varies in length at... | |
 | International Correspondence Schools - 1911 - 450 pages
...planets; these occurrences are called occultations. EXPLANATIONS OF TERMS RELATING TO TIME Apparent solar day is the interval of time between two successive transits of the sun over the same meridian; apparent time is measured by the hour angle of the true sun. Mean Sun.... | |
 | Harold Pender - 1911 - 460 pages
...conditions, would make 86,400 oscillations in a mean solar day; this unit is called the second. The solar day is the interval of time between two successive transits of the sun across the meridian of the earth at the point of observation; this interval varies in length at... | |
 | John William Norie, J. W. Saul - 1917 - 642 pages
...measured by the daily motion of the real or true sun ; it is called the apparent time. An apparent solar day is the interval of time between two successive transits of the sun's centre over the same meridian. It is apparent noon when the real sun's hour circle coincides... | |
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A Solar Day is the interval of time between two successive transits of the sun over the same meridian; and the hour-angle of the sun is called Solar Time. 
