The zenith angle is the angle between a point of interest and the zenith — the point directly overhead.
39+ Zenith Angle Vs Vertical Angle PNG. Vertical angles are the angles opposite each other when two lines cross. A zenith angle is an angle measured in a vertical plane downward from an upward directed vertical line through the instrument.
Definition Of The Solar Zenith Angle The Viewing Zenith Angle Download Scientific Diagram from www.researchgate.net
Ζ = 90 − α from figures (7,8) a formula for the elevation angle at solar noon can be determined according to the formula α = 90 + φ − δ if δ > í µí¼ (16) α = 90 − φ + δ if δ ≤ φ where: Directly overhead, or in the zenith; The vertical angle (also termed the zenith angle) is the difference between a prescribed direction (namely the direction of the zenith) and the direction using the telescope, determine the instrument height i at the staff.
Zenith angle = 114° 26' 34 zenith angle = 202°.
Ζ = 90 − α from figures (7,8) a formula for the elevation angle at solar noon can be determined according to the formula α = 90 + φ − δ if δ > í µí¼ (16) α = 90 − φ + δ if δ ≤ φ where: The quickbird metadata file gives a mean elevation angle of the sun from horizontal so i think i am correct in assuming that. Then the telescope is pointed vertically toward the zenith the reading is zero deg. All vertical angles and zenith angles must be entered in the same format as horizontal angles.
