What determines the sunrise and sunset times of a place? Please state it professionally in sections,

The main factors that determine the sunrise and sunset time of a place are as follows:

1.The rotation of the Earth determines that the sun rises in the east and sets in the west. It takes about 24 hours for the Earth to rotate around in one cycle, which is what we often call "one day".

2.Latitude: The length of day and night is different in different latitudes of the planet.

The higher the latitude, the longer the length of day and night, i.e., the longer the day and the shorter the night. This is because the Earth is a slightly flattened sphere, so sunlight is unevenly distributed across the Earth's surface, with areas near the equator having more hours of daylight and areas closer to the poles having less hours of daylight.

3.Season: Season is also a factor that affects the time of sunrise and sunset. In the Northern Hemisphere, summer has long daylight hours and short night hours; In winter, the daylight hours are short and the nights are long. This is caused by the change in the Earth's relative position to the Sun during its revolution.

4.Time Zone: Different time zones on Earth are also factors that affect the time of sunrise and sunset.

The division of time zones is based on the meridian of the Greenwich Observatory, with one time zone for every 15 degrees of longitude. The sunrise and sunset times are the same within a time zone, but there will be some differences between different time zones.

The above are the main factors that determine the sunrise and sunset time of a place, and these factors affect each other and together determine the sunrise and sunset time in different places on the earth.

Paris, France is more than 48 degrees north latitude, while Shanghai is about 30 degrees north latitude, a lot of latitude differences!

It's summer in the Northern Hemisphere, and the higher the latitude, the longer the daylight hours, and the sunshine hours in Paris are much longer than in Shanghai, so the sunset time in Paris is later than in Shanghai. It has nothing to do with longitude.

Earth's rotation, longitude. This part of the high school geography book is very clear, as for how to calculate, remember not too clear, you can look at what is the longitude of Paris, what is the longitude of Shanghai, see how much longitude is different in the middle, it seems that the difference in longitude time is 4 minutes for each difference in longitude.

Does sunrise and sunset time have anything to do with longitude? It's so fresh!

The change process of sunrise is: when the sun is ready to come out, there will be a piece of fish belly white on the horizon, and then the fish belly white will become light pink or orange, and when the clouds slowly disperse, a red line will appear on the horizon, and then the sun will appear, first you can see a little bit of the sun, and then the sun slowly rises, the color is red and the stool is Hu Tongtong, and the clouds next to the rough rock are also bright orange orange.

Observe the process of sunrise

Humans can see the sunrise because the sunlight is affected by the dust of the Earth's atmosphere, which produces Rayleisan.

If you want to see the sunrise, you need to check the weather forecast, and it is best to go to the beach or on the top of a mountain, and arrive at your destination in advance.

In contrast, sunset refers to the passing distance of the sun slowly descending below the western horizon, and its color is generally lighter than that of sunrise.

The time of sunrise in astronomy is defined as the moment when the sun just rises above the horizon, not the entire day away from the horizon.

Sunset time is defined in astronomy as the time when the edge of the Sun's disk completely disappears below the western horizon. Due to the refraction of light rays in the atmosphere, the sinking sunlight path has been highly deflected near the horizon, so that by the time the sun is not visible, the real sun is already about a sun's diameter below the horizon (approx.

Shadow of morning and dusk. When the center of the sun is 6 ° below the horizon, it is called the beginning of civil morning light or the end of civil dusk, and the period of time from the beginning of civil morning light to sunrise or from the end of the sun to the end of civil dusk is called civil morning and dusk shadow, when the sky is bright and outdoor operations can be carried out;

When the center of the sun is 12 degrees below the horizon, it is called the beginning of the nautical morning light or the end of the nautical twilight, and the period of time from the beginning of the nautical morning light to the beginning of the civil morning light or from the end of the civil twilight to the end of the nautical twilight is called the nautical morning twilight shadow, at this time, the surrounding scenery is blurred, and the stars disappear or appear one after another;

When the center of the sun is 18° below the horizon, it is called the beginning of astronomical dawn or the end of astronomical twilight, when the influence of daylight begins to appear or no longer shows on the background of the sky, and it is about to break away from or present the scene of night. According to this definition, three types of dawn and twilight can be calculated, which are published in the astronomical almanac and the nautical astronomical almanac, respectively. At high latitudes, there is a period of time in the year when the morning and dusk are clouded all night, called "white nights".

The higher the latitude, the longer the period during which the white night lasts.

Hello, it is a pleasure to serve you and give you the following answer: The day of the year when you can see the sunrise and sunset is the summer solstice. The summer solstice is an important solar term every summer and the day when the sun is at its highest point in the Northern Hemisphere, on this day, the sun rises and sets in the sky, so we can see the sunrise and sunset.

Generally speaking, the date of the summer solstice is June 21 every year, but there may be some deviations, so it is best to check the date of the summer solstice in advance so as not to miss it. Secondly, to see the sunrise and sunset, it is best to be in an open area, which will allow you to see the beauty of the sun rising and setting more clearly. Finally, to see the sunrise and sunset, it's best to do it in the morning and late afternoon, so you can see the sun rising and setting more clearly.

In short, in order to see the sunrise and sunset, you must first know the date of the summer solstice, then in an open place, and finally in the morning and evening. Personal tip: Watching the sunrise and sunset is a wonderful thing to do and make you feel the charm of nature, so make sure you take the time to see this wonderful sight!

Places on the earth (longitude) are in different positions (sunrise time.

different) phenomena (east in the morning, west in the evening), which are related to the earth's (rotation of the stool) (motion).

The daily rise and west setting of the sun, moon and stars on the earth is related to the (rotation) (motion) of the earth.

The change in the time of sunrise and sunset every day is related to the (revolution) (movement) of the earth.

Due to the atmosphere.

The lower part of the atmosphere is densely aroused, and the upper part is dense, and the refractive index of the lower part of the atmosphere.

Large, the upper refractive index is small, the sunlight passes through the atmosphere at "sunrise" and is refracted, and the rays deflected downwards by the folded spike cover are deflected downward, and the refracted rays are reversed to guess the past, thinking that the sun is refracting the reverse extension of the rays, so we see that the position of the sun q is above the real position s that is, s is below q

In the same way, S is also below Q at "sunset".

Therefore, d

If we consider the intersection of the Earth's yellow and equatorial angles and artificial regulations, it should be the intersection of the east-west longitude and the equator at 180°.

It is not affected by the length of day and night, and it is 12 hours of day and 12 hours of night every day;

This point is the beginning of the day, so it can also be called the place where the earliest sunrise occurs;

This point is the end of the day, so it can also be called the place where the sun sets at the latest.

In the Antarctic and Arctic regions, there will be polar day and polar night, but there will be no mention of "sunrise" and "sunset" at that time.

1. You say that the sunrise in the southeast and the sunset in the southwest of Jinan is actually not right, only in winter (March 21 - September 23) is the southeast sunrise and southwest sunset, and the summer half year is the northeast sunrise and northwest sunset.

You can understand it this way, the sun turns 15 degrees per hour in the sky (this is determined by the speed of the earth's rotation), 12 o'clock (local time) is the highest time of the day, that is, the sun is in the southernmost time, if it is winter, the day length is less than 12 hours, and the morning and afternoon are less than 6 hours, then the angle of the sun's rotation is less than 90 degrees in the morning and afternoon, and the place from due south at 12 o'clock to less than 90 degrees from east to west is southeast and southwest. The summer half of the year is the opposite.

2. In the same way, the polar day in northern Norway is 12 o'clock local time, the sun is due south, the sun is at its highest, and then every 6 hours, the sun turns 90 degrees to the west.

It's a bit wordy, try it.

1.Because Jinan is north of the Tropic of Capricorn, the sun cannot shine directly all year round, and can only be southern.

2.Norway has a higher latitude and a polar day phenomenon occurs in the month.

6 o'clock is sunrise, so in the east, at 12 o'clock the sun shines directly at its longitude, so it is south, and at 18 o'clock it is sunset, so in the west, at 24 o'clock, Norway turns to the other side of the earth, so the sun is in its north.

As for **, please study the globe well, these are very simple, you can solve it by studying it yourself, I wish you all the best in your studies!

Because Jinan is in the northern hemisphere, north of the Tropic of Capricorn, the sun can only appear in the southeast, southwest, and due south; It's polar day in Norway, you can understand it in an encyclopedia!

12. Relative to the Earth, the Sun moves westward at a speed of 15 degrees per hour; It takes 12 hours for an airplane to orbit the Earth, which means that the airplane is moving eastward at a speed of 30 degrees per hour relative to the Earth. Relative to airplanes, the sun is moving westward at a speed of 45 degrees per hour. 360 degrees a week, so, the alternation of day and night on this aircraft is:

b 8 hours (360 45=8).

11. In this way, 8 hours after departure at 12 o'clock Beijing time on August 23, 2012 (equivalent to 24 hours under normal circumstances), that is, until 20 o'clock, the pilot can observe a sunset and a sunrise during the flight. It's noon again. After another 4 hours (equivalent to 12 hours under normal circumstances), the pilot will be able to observe another sunset during the flight.

So the number of sunrises and sunsets that the pilot can observe during the flight is: c One sunrise and two sunsets.

Hope it helps.

11: Since it's 12 noon and you're heading east, you'll see a sunset, then a sunrise, and a sunset before you land at 12 p.m. So it's a total of one sunrise and two sunsets.

12: I didn't expect it yet. If there is an exclusionary method.

It should also be a choice of BBecause in 12 hours did one sunrise and two sunsets. So the alternating time is definitely less than 12.

If it's 6 hours. Then you should see two sunrises and sunsets. So choose B

The Sun rises from the southeast, then gets higher and higher, reaches the southernmost point at noon, and then sets again in a southwesterly direction, the Sun is getting lower and lower, not a circle, nor a semicircle, but an arc smaller than a semicircle.

The time difference between the eastern and western hemispheres is caused, alternating day and night.