Question 1771Navigation General70% to pass
When plotting a circle of equal altitude for a high altitude sight, the radius of the circle is determined by the formula _______________.
AI Explanation
The correct answer is B) 90° - Ho.
The radius of the circle of equal altitude is determined by the formula 90° - Ho, where Ho is the observed altitude of the celestial body.
This formula is derived from the fact that the circle of equal altitude is a small circle on the celestial sphere that is perpendicular to the observer's vertical circle. The radius of this circle is equal to the complement of the observed altitude (90° - Ho).
The other options are incorrect because they do not accurately represent the formula for determining the radius of the circle of equal altitude.
Related Questions
#1769 What is the geographic longitude of a body whose GHA is 215°15'? #1770 A position on the Earth has a longitude of 74°10'E. Its celestial counterpart would have a _______________.#1772 The line of position should be plotted as a circle around the GP of the body when the Ho exceeds what minimum value? #1773 The GP of a body for a high altitude sight is determined from the declination and the . #1774 The GP of a body for a high altitude sight is determined from the declination and the _______________.