It is the sub-solar point. It is the point where the Sun is directly overhead.
The sub-solar point has a latitude equal to the Sun's declination at any moment, so all points on Earth between latitudes of ±23½ degrees can be the sub-solar point.
If you want to know the direction to the sub-solar point at any instant from where you are, just point at the Sun and then move your arm vertically downwards so that it points horizontally.
If you want to know the distance to the sub-solar point, measure the Sun's angle relative to overhead where you are. The distance (in nautical miles) is 60 times that angle in degrees.
The sun is directly south at solar noon, which is the time when the sun reaches its highest point in the sky for the day. This usually occurs around 12:00 pm local time, but it can vary slightly depending on your location and time of year.
It is called "solar time" or "apparent solar time." This method of timekeeping is based on the position of the sun in the sky, with noon defined as when the sun is at its highest point.
The time it takes for a point on a wave to move from its lowest point to its highest point and back to its lowest point again is called the period of the wave. The period is the time it takes for one complete cycle of the wave to occur. It is inversely related to the frequency of the wave.
The coordinates I will use are for 28 degrees north, 82 degrees west. This point is very near Lakeland. This point is not very far from the tropic of cancer, but no part of the continental US reaches it. On June 20 2008 the sun will reach an altitude of 84 degrees 28 minutes 22 seconds at 12:31:38.
The earth's orbit around the sun is not a perfect circle, so there is a point at which we are nearest to the sun, and a point at which we are farthest from it. The point in the orbit at which we are nearest the sun is called "perihelion". The earth passes that point at some time during the first few days in January. In 2011, it happened on January 3. The point in the orbit at which we are farthest from the sun is called "aphelion". We pass it at some time during the first few days of July.
That point of the heavens, or lower hemisphere, directly opposite the zenith; the inferior pole of the horizon; the point of the celestial sphere directly under the place where we stand., The lowest point; the time of greatest depression.
It is Moment
The point just overhead is called the zenith. The objects visible at that point depend on the date, the time of day or night, and the observer's location.
The time required for one cycle to return to its starting point is called the period of the cycle.
yes
yes... The longitude that the sun is directly over at any point in time is on average 15
Definitely. Distance is directly proportional to time, and the proportionality constant is called "speed".
The speed at a given point is called instantaneous speed. It represents the speed of an object at a specific moment in time.
at each place ,whenever the sun was directly overhead , it was considered noon this was called solar time.
at each place ,whenever the sun was directly overhead , it was considered noon this was called solar time.
The sun is directly south at solar noon, which is the time when the sun reaches its highest point in the sky for the day. This usually occurs around 12:00 pm local time, but it can vary slightly depending on your location and time of year.
The term for the time it takes each wave crest to pass a certain point is called the "period" of the wave. This is the time interval between two consecutive wave crests passing a fixed point.