# Is the Sun Ghosting Us?

• Field physics
In summary, the conversation discusses the color of the sun and its apparent movement in relation to the Earth. The points raised include the sun appearing red during sunset due to atmospheric conditions and the idea of the sun "running away" causing nightfall.
Field physics
Just something dumb but funny to think about.
Redshift indicates the object is moving away.
The Earth orbits the sun
The sun appears to be red.
So in conclusion, the sun is running away and the Earth is chasing the sun. Lol hopefully that lightens your evening.

Office_Shredder
But the sun is yellow...

berkeman
Field physics said:
The sun appears to be red.
Nope, sorry. Krypton was red, and our Sun is yellow. Don't you read the peer-reviewed Superman literature?

https://smallville.fandom.com/wiki/Red_sun

Field physics
Office_Shredder said:
But the sun is yellow...
But ... the sun is white.

pinball1970, DrClaude and Field physics
DaveC426913 said:
But ... the sun is white.

That's the point of the thread. The sun is white, but since it is stationary relative to the Earth it gets yellow shifted.

PeroK, phinds, DaveC426913 and 1 other person
berkeman said:
So you're saying our Sunlight's Doppler redshift varies with how much atmosphere it has to travel through?
No, the sun runs away in the evening which is why it goes dark at night. (Then it hides under the turtles.)

Hornbein, Office_Shredder, Field physics and 1 other person

## 1. What is the "Eternal Chase" between Earth and Sun?

The "Eternal Chase" between Earth and Sun refers to the constant motion and gravitational pull between the two bodies. Earth orbits around the Sun in a nearly circular path, while the Sun's gravity keeps Earth in its orbit.

## 2. How long does it take for Earth to complete one orbit around the Sun?

Earth takes approximately 365.24 days, or one year, to complete one orbit around the Sun. This is known as Earth's orbital period.

## 3. Why does Earth not get pulled into the Sun's gravitational pull?

Earth's orbital velocity is fast enough to counteract the Sun's gravitational pull. This balance between the two forces keeps Earth in a stable orbit around the Sun.

## 4. Does the distance between Earth and Sun vary throughout the year?

Yes, the distance between Earth and Sun does vary throughout the year. This is due to the elliptical shape of Earth's orbit, with the closest point being called perihelion and the farthest point being called aphelion.

## 5. How does the Earth-Sun relationship affect life on Earth?

The Earth-Sun relationship is crucial for sustaining life on Earth. The Sun's energy provides warmth and light, allowing for the growth of plants and the survival of living organisms. Additionally, the tilt of Earth's axis and its orbit around the Sun create the changing seasons, which play a vital role in the Earth's climate and ecosystems.

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