 | John Merrifield - 1886 - 376 pages
...horizon governs the social life of mankind, his transit has been adopted as the beginning of the day. The APPARENT SOLAR DAY is the interval between two successive transits of the sun's centre across the same meridian, and begins when the sun's centre is on the meridian. This is called noon.... | |
 | Henry Smith Carhart - 1894 - 394 pages
...7. The Unit of Time. — The unit of time universally employed 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 the apparent solar day varies in length from day to day throughout... | |
 | 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 day to day... | |
 | 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, while mean time is time reckoned... | |
 | 1897 - 812 pages
...convenience the first point of Aries, over the same meridian. SOLAR DAY, the day measured by the sun, being the interval between two successive transits of the sun's centre over the same meridian. MEAN SOLAR DAY, the mean or average of all the apparent solar days in the year. To WIN THE DAY, to... | |
 | John Bradley Harbord - 1897 - 554 pages
...twenty-four sidereal hours, and these are again subdivided into minutes and seconds. Day, Solar.—The interval between two successive transits of the sun's centre over the same meridian. The Apparent Solar Day varies in length in consequence of the variable motion of the sun in the ecliptic,... | |
 | 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...meridian ; it begins when that point is on the meridian (apparent noon). Observation shows that this interval is never exactly the same for two days in succession... | |
 | Julius Hortvet - 1899 - 280 pages
...originally intended to have. The Unit of Time. — The second is the gj^j, of a mean solar day. The solar day is the interval between two successive transits of the sun's centre across the meridian of any given place. But this interval varies in length from day to day on account... | |
 | 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... | |
 | 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... | |
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The apparent solar day is the interval between two successive transits of the sun's centre over the same meridian. 
