Does anybody know how to calculate the angle of the sun on different days of the year for different letitudes and longitudes?If yes,please explain me?
2006-11-21 00:34:04 · 6 answers · asked by superstar f 1 in Science & Mathematics ➔ Astronomy & Space
Step 1: find a place where the horizon is at the same altitude above sea level as the place you are standing. Standing on the coast or a boat, looking out to sea is best.
Step 2: Look South from the northern hemisphere and north from the southern hemisphere
Step 3: Take the reading at 12 noon (no Day Light Saving allowed.)
2006-11-21 01:01:16 · answer #1 · answered by wizebloke 7 · 0⤊ 0⤋
Get a meter stick.
Go outside (on a sunny day) and put one end of the meter stick on the ground with other other end sticking straight up On the ground, mark the beginning and end of the shadow.
Measure the length of the shadow.
Record the length of the shadow in meters. It may be easier to measure how many milimeters long the shadow is and then convert millimeters into meters by moving the decimal point 3 spaces to the left.
Record time at which you measured the length of the shadow.
Calculating the Angle of the Sun
.
Shadow Length
(in meters) Sun's Angle
Above Horizon
angle of sun above horizon = tan-1
.
Go to mapblast.com .
Type in the address where you took your measurements.
Click the Create Map button.
Find your latititude (and longitude) just above the upper-right corner of the map.
2006-11-21 00:54:00 · answer #2 · answered by veerabhadrasarma m 7 · 0⤊ 0⤋
Well usually you can eyeball it for a rough estimate. Hold your fist up to the sky and it will make an arc of about 10 degrees. The sun moves 15 degrees per hour, so if you know the sunset and sunrise times, you can estimate the angle the sun is at fairly accurately.
2006-11-21 04:51:50 · answer #3 · answered by Roman Soldier 5 · 0⤊ 0⤋
See the website listed below---gives positions of the sun, moon, planets from 1994-present. This includes declination(distance above/below the celestial equator) and Right Ascension (the celestial "longitude"
2006-11-21 06:14:09 · answer #4 · answered by JIMBO 4 · 0⤊ 0⤋
What you really need it called a Solar Ephemeris. I believe that K & E (Keuffel and Esser) once produced these books that gave the delcination and hour angle of major heavenly bodies including the sun.
2006-11-21 00:48:07 · answer #5 · answered by Anonymous · 0⤊ 0⤋
This calculator will work it out for you
or if you want the mechanics go to the second link
2006-11-21 00:40:43 · answer #6 · answered by Basement Bob 6 · 0⤊ 0⤋