Question 9 Manila, Philippines is located at 120.967° Longitude, 14.6° Latitude. Enter the solar-zenith angles for this city on each of the following dates. Summer Solstice: Autumn Equinox: Winter Solstice: Spring Equinox: (Remember, all answers are positive. There are no negative angl
Question 9
Manila, Philippines is located at 120.967° Longitude, 14.6° Latitude.
Enter the solar-zenith angles for this city on each of the following dates.
Summer Solstice:
Autumn Equinox:
Winter Solstice:
Spring Equinox:
(Remember, all answers are positive. There are no negative angles.)
Manila, Philippines is located at 120.967° Longitude, 14.6° Latitude.
the solar-zenith angles for this city on each of the following dates as following :-
We are given, Latitude = 14.6° N
We need to calculate the zenith angle at different dates
1) At summer solstice :
Angle of declination, d= 23.45° (Positive during summer solstice)
Latitude, l= 14.6°
Elevation angle = 90 + l - d
= 90 + 14.6 - 23.45 = 81.15
Zenith Angle = 90 - elevation angle = 90 - 81.15 = 8.85
2) At Autumn equinox:
We know Declination =0°
Angle of elevation= 90+ 14.6 -0 = 104.6
As you have value was greater than 90°so subtract it from 180°.
Angle of elevation= 180 - 104.6 = 75.4
Zenith angle = 90 - 75.4 = 14.6
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