A SUNSET OBSERVATION

A Sunset Observation

A Sunset Observation

Purpose of the Activity

The purpose of this program is to observe the variation in the sunset position along the horizon and to interpret this variation in terms of its effects on the seasons.

Observations

I collected my sunset time at my home. Where located in the San Marcos 92078.the likeness display us the clear image of the sunset time trend. With the designated day by day to winter, the sunset time started more and earlier. As we all understand the time of sunset varies all through the year, and is very resolute by the viewer's position on Earth, particular by longitude and latitude, and elevation.

Small daily alterations and obvious semi-annual alterations in the timing of sunsets are propelled by the axial tilt of Earth, daily rotation of the Earth, the planet's movement in its yearly elliptical orbit round the Sun, and the Earth and Moon's paired revolutions round each other. In the summertime, the days get longer and sunsets happen later every day until the day of the latest sunset, which happens after the summer solstice. In the Northern Hemisphere, the latest sunset happens late in June or in early July, but not on the summer solstice of June 21.

This designated day counts on the viewer's latitude (connected with the slower Earth's movement round the aphelion round July 4). Similarly, the soonest sunset does not happen on the winter solstice, but rather about two weeks previous, afresh counting on the viewer's latitude. In the Northern Hemisphere it happens in early December (influence from the Earth's much quicker movement beside the perihelion which happens round January 3). Likewise, the identical occurrence lives in the Southern Hemisphere, but with the respective designated days turned around, with the soonest sunsets happening some time before June 21 in ...