During an instant of observation at a place whose latitude is N38°29'42", the sun's apparent declination (d) already corrected for refraction and parallax, and true altitude (h) were determined to be N17°24'29" and 32°55'30", respectively. Determine the length (in angular units) of the three sides of the astronomical triangle formed by the sun, the observer's zenith, and celestial pole.

During an instant of observation at a place whose latitude is N38°29'42", the sun's apparent declination (d) already corrected for refraction and parallax, and true altitude (h) were determined to be N17°24'29" and 32°55'30", respectively. Determine the length (in angular units) of the three sides of the astronomical triangle formed by the sun, the observer's zenith, and celestial pole.

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter14: Highway Surveys And Location

Section: Chapter Questions

Problem 12P

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Photogrammetry

Photogrammetry is a technology of taking measurements of physical objects present in the environment, using photographs. It includes the process of recording and analyzing a three-dimension image in the two-dimension form. Photogrammetry was invented around 150 years ago in 1851 by Aimé Laussedat, he was also known as the father of photogrammetry, but this method was not in use until 50 years after its invention. This method was first used in Germany by Dr. Albrecht Meydenbauer in 1893 who was the director of the Royal Prussian Photogrammetric institute founded by him.

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6. During an instant of observation at a place whose latitude is N38°29'42", the sun's apparent declination (d)
already corrected for refraction and parallax, and true altitude (h) were determined to be N17°24'29" and
32°55'30", respectively. Determine the length (in angular units) of the three sides of the astronomical triangle
formed by the sun, the observer's zenith, and celestial pole.

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