So, I guess there is no need for a webpage about Aphelion Day 2019.

  • Thread starter Drakkith
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In summary, Aphelion Day, the day when Earth is farthest from the sun, is not a fixed day due to the variations in Earth's eccentricity. It is not currently on the calendar but may coincide with the Summer Solstice in the future.
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How come Aphelion Day is not on the calendar? :mad:

One would, or could, logically think that Summer Solstice and Aphelion Day should coincide, but nay, it is a coincidence if that does happen due to the changes in the Earth's eccentricity of its orbit.

"The dates when Earth reaches the extreme points on its orbit are not fixed because of the variations in its eccentricity. In 1246, the December Solstice was on the same day as the Earth reached its Perihelion. Since then, the Perihelion and Aphelion dates have drifted by a day every 58 years. In the short-term, the dates can vary up to 2 days from one year to another."

Mathematicians and astronomers estimate that in the year 6430, over 4000 years from now, the timing of the Perihelion and the March Equinox will coincide"
from
https://www.timeanddate.com/astronomy/perihelion-aphelion-solstice.html
 
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1. What is Aphelion Day?

Aphelion Day is an astronomical event that occurs once a year, where the Earth is at its farthest distance from the Sun in its orbit.

2. When is Aphelion Day 2019?

Aphelion Day 2019 falls on July 4th, which marks the point in Earth's orbit where it is 94.5 million miles away from the Sun.

3. Why is Aphelion Day significant?

Aphelion Day is significant because it marks the point in Earth's orbit where it receives the least amount of solar radiation. This results in cooler temperatures in the Northern Hemisphere and warmer temperatures in the Southern Hemisphere.

4. How often does Aphelion Day occur?

Aphelion Day occurs once every year, usually between July 2nd and July 6th. However, due to changes in Earth's orbit, this date can vary slightly.

5. Are there any celebrations or traditions for Aphelion Day?

While there are no official celebrations or traditions for Aphelion Day, some people choose to acknowledge the event by stargazing or learning more about Earth's orbit and its relationship with the Sun.

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