| John Brocklesby - 1872 - 374 pages
...into two equal parts towards the east and west. For this reason this circle is called the merid1an circle, because when the sun, in his apparent diurnal...is also a circle, called the celestial equator, or equinoctia^ Thus, in Fig. 18, EQ is the equator, and E'Q1 the celestial equator. They appear as straight... | |
| United States. Congress. House - United States - 1885 - 558 pages
...ten minutes of Greenwich mean time. Their geometric signification is as follows: — Let us imagine a plane passing through the centre of the earth, perpendicular to the right line joining the centres of the sun and moon. This latter line is the axis of the moon's shadow,... | |
| United States Naval Observatory. Nautical Almanac Office - Nautical almanacs - 1887 - 556 pages
...minutes of Greenwich mea i time. Their geometric sig:iificatioii is as follows: — Let us imagine a plane passing through the centre of the earth, perpendicular to the right line joining the centres of the sun and moon This latter lire is the axis of the moon's shadow,... | |
| United States - 1895 - 578 pages
...ten minutes of Greenwich mean time. Their geometric signification is as follows: — Let us imagine a plane passing through the centre of the earth, perpendicular to the right line joining the centres of the sun and moon. This latter line is the axis of the moon's shadow,... | |
| United States - 1898 - 580 pages
...ten minutes of Greenwich mean time. Their geometric signification is as follows: — Let us imagine a plane passing through the centre of the earth, perpendicular to the right line joining the centres of the sun and moon. This latter line is the axis of the moon's shadow,... | |
| United States Naval Observatory. Nautical Almanac Office - Nautical almanacs - 1890 - 558 pages
...ten minutes of Greenwich mean time. Their geometric signification is as follows: — Let us imagine a plane passing through the centre of the earth, perpendicular to the right line joining the centres of the sun and moon. This latter line is the axis of the moon's shadow,... | |
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