 ... the column directs the manner in which it is to be applied to mean time to obtain the apparent time. The equation of time, as given on page II, is the apparent time of mean noon; and is equivalent to the hour-angle of the true sun at the instant of...  A Treatise on Surveying - Page 1341902Full view - About this book
 | United States Naval Observatory. Nautical Almanac Office - Nautical almanacs - 1892 - 578 pages
...the hour-angle of the true sun at the instant of mean noon. The sidereal time of mean noon is also the right ascension of the mean sun at Greenwich mean noon. It may be reduced for the longitude, or to any Greenwich mean time, by using the hourly difference, 9".8565;... | |
 | United States. Congress. House - United States - 1885 - 558 pages
...the hour-angle of the true sun at the instant of mean noon. The sidereal time of mean noon is also the right ascension of the mean sun at Greenwich mean noon. It may be reduced for the longitude, or to any Greenwich mean time, by using the hourly difference, 99.8565;... | |
 | United States - 1895 - 578 pages
...the hour-angle of the true sun at the instant of mean noon. The sidereal time of mean noon is also the right ascension of the mean sun at Greenwich mean noon. It may be reduced for the longitude, or to any Greenwich mean time, by using the hourly difference, д'.взбз;... | |
 | United States - 1900 - 662 pages
...must be applied to mean time in order to obtain the apparent time. The sidereal time of mean noon is the right ascension of the mean Sun at Greenwich mean noon. It may be reduced for the longitude, or to any Greenwich mean time, by using the hourly difference, 9.8565";... | |
 | Reginald Empson Middleton - Surveying - 1902 - 370 pages
...at ' mean noon.' This is the hour that the Greenwich sidereal clock should show at the instant of ' Greenwich mean noon.' It may also be described as...of each month there is a column headed ' mean Mean Tune time' at 'sidereal noon.' Now ' sidereal noon ' is the instant jf oon _ at which the 'first point... | |
 | United States Naval Observatory. Nautical Almanac Office - Nautical almanacs - 1915 - 798 pages
...correction to be applied to mean time in order to obtain apparent time. The Sidereal Time of Alean Noon is the right ascension of the mean Sun at Greenwich mean noon. It may be reduced for the longitude or to any Greenwich mean time by using the hourly variation, +98.8565;... | |
| |
