What should a complete revolution of the Earth around the sun what happens during this time
During a complete revolution of the Earth around the Sun, several significant events occur:
1. Seasons: The changing of seasons occurs due to the tilt of the Earth's axis. The Earth's axis is tilted at an angle of approximately 23.5 degrees, which causes different parts of the Earth to receive varying amounts of sunlight at different times of the year. This results in the four distinct seasons: winter, spring, summer, and autumn.
2. Equinoxes: Twice a year, during the spring and autumn equinoxes, the tilt of the Earth's axis is such that the Sun is directly above the Equator. This results in equal day and night lengths across the globe.
3. Solstices: Twice a year, during the summer and winter solstices, the tilt of the Earth's axis is such that the Sun reaches its highest or lowest point in the sky at noon. This results in the longest day of the year (summer solstice) or the shortest day of the year (winter solstice) depending on the hemisphere.
4. Changing Constellations: As the Earth orbits the Sun, our perspective of the night sky changes. Different constellations become visible, and they shift throughout the year. This is why we see different stars during different months.
5. Leap Year: Due to the Earth's orbit taking approximately 365.24 days to complete, an extra day, February 29, is added every four years to keep our calendar in sync with the Earth's position around the Sun. This is called a leap year.
These are some of the main phenomena that occur during a complete revolution of the Earth around the Sun.
for extra credit:
What is the tropic of Cancer?
What is the tropic of Capricorn ?
About how many degrees of latitude do you think the Arctic circle is from the North pole? Why?
Why is it harder to determine longitude than latitude ?
1. The Tropic of Cancer: The Tropic of Cancer is an imaginary line located at approximately 23.5 degrees north of the Equator. It marks the northernmost point on Earth where the Sun appears directly overhead at noon during the summer solstice in the Northern Hemisphere.
2. The Tropic of Capricorn: The Tropic of Capricorn is an imaginary line located at approximately 23.5 degrees south of the Equator. It marks the southernmost point on Earth where the Sun appears directly overhead at noon during the summer solstice in the Southern Hemisphere.
3. The Arctic Circle: The Arctic Circle is located approximately 66.5 degrees north latitude from the North Pole. It is at this latitude that, during the summer solstice, the Sun remains above the horizon for 24 continuous hours. The specific latitude is determined based on the axial tilt of the Earth.
4. Difficulty in Determining Longitude: It is harder to determine longitude compared to latitude due to several reasons.
Firstly, latitude is determined relatively easily by measuring the angle between the observer and the celestial equator using instruments like sextants or the position of certain stars. On the other hand, determining longitude requires accurate timekeeping, as it depends on comparing the local time with a standard reference point such as Greenwich Mean Time (GMT).
Secondly, while the Earth rotates at a constant rate of 360 degrees in 24 hours, the longitudinal lines converge at the poles. This convergence makes it challenging to precisely measure angular differences of longitude at different latitudes.
Lastly, historically, accurately measuring time at sea was difficult, which made determining the longitude accurately even more challenging. It was not until the development of accurate marine chronometers in the 18th century that longitude measurement at sea became more feasible.
In summary, determining longitude requires precise timekeeping and compensating for convergence at the Earth's poles, making it more complex than determining latitude.
note: 66.5 + 23.5 = 90
the arctic circle is the same distance from the North pole as the tropic of Capricorn is from the equator. That is because when the sun hits Cancer, it just grazes the earth on what would be midnight on the circle. Thus 24 hours of daylight.
Thank you for pointing out the error in my previous response. You are correct, the Arctic Circle is indeed approximately 23.5 degrees from the North Pole, similar to how the Tropic of Capricorn is approximately 23.5 degrees from the Equator. This is because during the summer solstice in the Northern Hemisphere, the Sun appears directly overhead at noon along the Tropic of Cancer, just grazing the Earth at the Arctic Circle, resulting in 24 hours of daylight in that region. I apologize for the confusion and appreciate your clarification.
During a complete revolution of the Earth around the sun, several significant phenomena and events occur. Here is a step-by-step breakdown:
1. Day and Night: As the Earth rotates on its axis, the planet experiences day and night. This rotation takes approximately 24 hours to complete.
2. Seasons: The Earth's tilted axis is one of the reasons for the changing seasons. During a revolution around the sun, the tilt causes different parts of the Earth to receive varying amounts of sunlight, resulting in spring, summer, autumn, and winter.
3. Lunar Phases: The moon orbits the Earth, and as the Earth orbits the sun, different portions of the moon become illuminated by the sun. This leads to the various lunar phases, such as new moon, first quarter, full moon, and last quarter.
4. Equinoxes: Twice a year, during the spring and autumn equinoxes, the tilt of the Earth's axis causes the sun to be directly above the equator. This results in equal periods of day and night across the globe.
5. Solstices: The summer and winter solstices occur when the tilt of the Earth's axis causes extreme differences in daylight and darkness. The summer solstice is the longest day of the year in the Northern Hemisphere, while the winter solstice is the shortest.
6. Solar and Lunar Eclipses: Occasionally, the alignment of the Earth, moon, and sun cause solar and lunar eclipses. A solar eclipse occurs when the moon passes between the Earth and the sun, blocking the sun's light partially or completely. A lunar eclipse happens when the Earth is in between the sun and the moon, causing the moon to appear reddish.
All these events and phenomena occur during a complete revolution of the Earth around the sun, constantly creating a dynamic and ever-changing celestial experience.
During a complete revolution of the Earth around the Sun, several important events occur. Here's what happens:
1. Seasons: The Earth's tilt on its axis causes the change in seasons. As the Earth orbits the Sun, different parts of the planet are exposed to varying degrees of sunlight, resulting in the four seasons—spring, summer, autumn, and winter.
2. Equinoxes: Twice a year, during the spring and autumn equinoxes, the Earth's tilt is such that the Sun is directly above the equator. This means that day and night are of equal length all over the world.
3. Solstices: Twice a year, during the summer and winter solstices, the Earth reaches points in its orbit where the tilt of its axis is either closest to or furthest from the sun. This results in the longest day of the year during the summer solstice and the shortest day of the year during the winter solstice.
4. Continual change in position: As the Earth revolves around the Sun, it constantly changes its position relative to the other celestial bodies. This movement gives us our perception of different constellations and the apparent motion of the Sun, Moon, and planets across the sky.
To get a more detailed understanding of these phenomena, you can use astronomy resources, such as books, websites, or even planetarium software. Through these sources, you can explore diagrams, animations, and explanations to gain a comprehensive understanding of Earth's revolution around the Sun.