 | William Guy Peck - 1883 - 406 pages
...latitude ; and AM < , the reduction. Fig 47. Geocentric Latitude. Apparent and Mean Solar Time. 78. An apparent solar day is the interval between two successive transits of the sun over the upper branch of the same meridian ; time reckoned in terms of this unit is called apparent solar time.... | |
 | 1885 - 498 pages
...exhibited on the various dials throughout the Observatory, and finally for its public distribution. The interval between two successive transits of the Sun over the same meridian is the solar day, which day varies in length, first by reason of the unequal apparent motion of the... | |
 | 1885 - 478 pages
...exhibited on the various dials throughout the Observatory, and finally for its public distribution. The interval between two successive transits of the Sun over the same meridian is the solar day, which day varies in length, first by reason of the unequal apparent motion of the... | |
 | United States. Congress. House - 1885 - 558 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 tho hour-angle of the sun is called Solar Time. This is the most natural and direct measure of time.... | |
 | John Merrifield - 1886 - 376 pages
...the 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... | |
 | Charles Austin Hobbs - 1889 - 366 pages
...week (wk.). 365 days =1 year (yr.). 366 days = 1 leap year. 100 years = 1 century. The length of a solar day is the interval between two successive transits of the sun over the same meridian. The length of a civil day is the interval between two successive midnights, and is the average length... | |
 | James Edward Oliver - 1889 - 178 pages
...declination is 23° 27' s., the day is shortest in north latitudes, and the night longest (winter solstice). The interval between two successive transits of the sun over the same meridian is an apparent solar day. This interval varies, from two causes : the obliquity of the ecliptic, and... | |
 | 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... | |
 | 1895 - 578 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 Ralston Balch - 1895 - 836 pages
...purposes of life, and is meas ured 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.... | |
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