The reason we say the earth moves around the sun is because the effects are more visible on a macro scale, and easier to. At some point within roughly a billion years, the planet will cross the. 1) the sun seems brighter (more dazzling) if there is more scattering in the atmosphere.
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Well, from the sun's perspective, one square km of land near the poles looks a lot smaller than one square km of land near the equator for the same exact reason. Relatively recent measurements indicate that the sun is nearly the roundest object ever measured. The sun does not rise, it is the horizon that goes down.
The sun is currently brightening at about one percent per hundred million years, and that rate is gradually increasing.
Approximating the sun as a black body effectively means that it's surface temperature is 5800k. 3 the sun, moon, earth (and so on) all move around each other. If scaled to the size of a beach ball, it would be so round that the difference. You say that sun rises in the east (with a certain degree of oscillations due to the tilt of the axis) just because the earth.
As i asked before, separate. Assume you're talking to someone ignorant of the basic facts of astronomy. The sun would actually look very small to us in the sky if there were no atmosphere (it's the same. Similarly, how would you prove to them.
How would you prove to them that earth orbits the sun?
And, indeed, if we look at the most dominant wavelength of the sun. Those are completely different things.
