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" CHAPTER VII. FINDING THE LONGITUDE BY ASTRONOMICAL OBSERVATIONS. 213. THE longitude of a point on the earth's surface is the angle at the pole included between the meridian of the point and some assumed first meridian. The difference of longitude of any... "
A Manual of Spherical and Pratical Astronomy: Embracing the General Problems ... - Page 317
by William Chauvenet - 1864
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A Manual of Spherical and Practical Astronomy: Spherical astronomy

William Chauvenet - 1863 - 764 pages
...certain peculiar cases be more in error than the assumed value, so that successively computed values will more and more diverge from the truth. The methods...45, where we have established the general equation L = T, — T (382) in which (Art. 47) T0 and T are the local times (both solar or both sidereal) reckoned...
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A Manual of Spherical and Astronomy: Embracing the ..., Part 32, Volume 1

William Chauvenet - 1864 - 726 pages
...found from two altitudes by the simple method proposed by Captain SUMXER, for which see Chapter VTEL CHAPTER VII. FINDING THE LONGITUDE BY ASTRONOMICAL...45, where we have established the general equation L = T 0 — T (382) in which (Art. 47) T 0 and T are the local times (both solar or both sidereal) reckoned...
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Spherical astronomy

William Chauvenet - 1874 - 724 pages
...latitude may also be found from two altitudes b the simple method proposed by Captain SLMNER, for which se Chapter VUL CHAPTER VII. FINDING THE LONGITUDE BY...general equation L = T0 — T (382) in which (Art. 47) Ta and T are the local times (both solar or both sidereal) reckoned respectively at the first meridian,...
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Spherical astronomy

William Chauvenet - 1891 - 716 pages
...be found from two altitudes by the simple method proposed by Captain SUMNER, for which see Chapter CHAPTER VII. FINDING THE LONGITUDE BY ASTRONOMICAL...45, where we have established the general equation L=T0—T (382) in which (Art. 47) T0 and T are the local times (both solar or both sidereal) reckoned...
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A Treatise on Surveying, Comprising the Theory and the Practice, Volume 2

William Mitchell Gillespie - 1897 - 488 pages
...computation with this new value for c obtain a— T — Cc — A a, identical for each group. LONGITUDE. 699. The longitude of a point on the earth's surface is...between the meridian of the point and some assumed meridian called first or initial meridian. The difference in longitude between two points is the angle...
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A Manual of Spherical and Practical Astronomy: Embracing the ..., Volume 1

William Chauvenet - 1900 - 722 pages
...The latitude may also be found from two altitudes by the simple method proposed by Captain SUMJJER, for which see Chapter VUl CHAPTER VII. FINDING THE...meridians. These definitions have been tacitly assumed iu Art. 45, where we have established the general equation L = T0 — T (382) in which (Art. 47) T0...
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Geometry: Plane Trigonometry. Chain Surveying. Compass Surveying. Transit ...

International Correspondence Schools - 1906 - 634 pages
...parallel have the same latitude, as the arcs Rr, G' G, F' F are evidently equal. 5. Longitude. — The longitude of a point on the earth's surface is the angle between the meridian plane through that point and another meridian plane assumed as a plane of reference....
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Astronomy: A Text Book

John Charles Duncan - 1926 - 478 pages
...to the axis. The parallel of latitude that lies midway between the poles is the terrestrial equator. The longitude of a point on the Earth's surface is the angle between the plane of its meridian and the plane of the meridian of some place chosen as a standard...
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Navigational Wireless

Stephen Harriman Long - 1927 - 208 pages
...circles of longitude converge through FIO. 117. the poles, and are called meridians of longitude. Thus the longitude of a point on the earth's surface is the angle subtended at the earth's centre by the great circle through that place and by the great circle through...
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Introduction to Avionics Systems

R.P.G. Collinson - 2002 - 804 pages
...equator to the point. The range of latitude angles is from 0° to 90° North and 0° to 90° South. The longitude of a point on the earth's surface is the angle subtended at the earth's centre by the arc along the equator measured East or West of the prime meridian...
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