 | Henry Smith Carhart, George Washington Patterson - 1895 - 360 pages
...unit of time universally employed in scientific investigations is the second of mean solar time. An apparent solar day is the interval between two successive transits of the sun's centre across the meridian of any place. But since the apparent solar day varies in length from... | |
 | Smithsonian Institution - 1897 - 982 pages
...The sidereal time at any place is о when the vernal equinox is in the meridian of that place. The solar day is the interval between two successive transits of the sun across any meridian ; and the solar time at any instant is the hour angle of the sun at that instant.... | |
 | William Mitchell Gillespie - 1897 - 482 pages
...The sidereal time at any place is 0* when the vernal equinox is in the meridian of that place. The solar day is the interval between two successive transits of the sun across any meridian, and the solar time at any instant is the hour angle of the sun at that instant.... | |
 | Elias Loomis - 1897 - 264 pages
...time, corresponds to July 3d, 21 hours of astronomical time. 117. Apparent Time and Mean Time. — An apparent solar day is the interval between two successive transits of the sun's centre over the same meridian. Apparent time is tivno ASTRONOMY. reckoned in apparent solar days,... | |
 | 1898 - 580 pages
...ordinary life, and is measured by the daily motion of the sun. 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. This is the most natural and direct measure of time.... | |
 | William Robert Martin - 1899 - 474 pages
...application of their known right ascensions. Such stars are technically known as ' Clock Stars.' An apparent solar day is the interval between two successive transits of the sun's centre over the same meridian ; it begins when that point is on the meridian (apparent noon).... | |
 | Herbert Michael Wilson - 1900 - 986 pages
...vernal equinox transits across the meridian. It includes 24 hours, numbered consecutively from zero. An apparent solar day is the interval between two successive transits of the sun across the meridian. The apparent solar time for any station of observer and any instant is the hour-angle... | |
 | Herbert Michael Wilson - 1900 - 988 pages
...vernal equinox transits across the meridian. It includes 24 hours, numbered consecutively from zero. An apparent solar day is the interval between two successive transits of the sun across the meridian. The apparent solar time for any station of observer and any instant is the hour-angle... | |
 | Herbert Michael Wilson - 1900 - 964 pages
...vernal equinox transits across the meridian. It includes 24 hours, numbered consecutively from zero. An apparent solar day is the interval between two successive transits of the sun across the meridian. The apparent solar time for any station of observer and any instant is the 'hour-angle... | |
 | Frank Cole Stebbing - 1903 - 364 pages
...interval between the sun's leaving a fixed point in the h.eavens and returning to it again. Def. 97. A Solar Day is the interval between two successive transits of the, sun over the same celestial meridian. Def. 98. A Solar Year is the interval between the sun's leaving the Jirst point... | |
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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. 
