From Earth, the Photosphere is the part visible on the Sun, though the Corona is the top layer of the Sun. We cannot see the Corona because the Photosphere is so bright.
Of course not. If it's the center of the Earth, it means that it's part of the Earth, not the sun.
When Earth was created, it was sucked into the Sun's gravitational field like the other 7 planets. That is why it revolves around the Sun.
Alaska of coarse
In the winter, our part of the Earth tilts away from the sun, and another tilts towards it, that is why we have winter when, say, Australia has summer. As the Earth moves around the sun, its tilt is adjusted to the sun depending on where we are. (The distance of the Earth to the sun is also a factor.
because 1 part of the world is full of sun most of the time when some does not get a lot of sun
The portion of the sun normally visible from Earth is the photosphere. This is the outermost layer of the sun's atmosphere that emits light and heat, allowing us to see the sun's surface.
photosphere
The layer of the Sun's atmosphere that can normally be seen is the photosphere. This is the visible surface of the Sun that emits light and heat and is responsible for the majority of the sunlight we receive on Earth.
The sun is only visible during the day because it is blocked by the Earth at night. When the Earth rotates on its axis, the sun is obscured from view as the part of the Earth you are on turns away from it.
Because the Earth orbits around the sun, and the sun is more visible daytime. One part of the earth faces Sun during the day.
Nothing really happens to the sun at night. Instead it is what happens to the part of the Earth where it is night. The earth is always turning, and the part that is turned away from the sun and is in shadow is called night. The sun is shining just the same in other parts of the world at the same time that you have night. See the Web Link for a simple explanation of this.
The moon appears visible late at night because its rising and setting times change daily due to its orbit around Earth. The moon's visibility depends on its phase and position in the sky relative to the sun.
The sun only rises and sets from your viewpoint- standing on the earth. As the earth turns, the sun becomes visible (rises) as your part of the world turns into the sun's light- it sets when your part of the world turns away from the light. But the sun is still shining- just on someplace where you are not.
The Earth rotates. When wherever you are rotates to a point where the Sun is visible, that lights up your part of the world, and that's what we call Day.
They can be visible from Earth without the aid of a telescope.
Because of the sun light reflecting off of it. Update: Normally new moons are invisible since the moon is between the Earth and Sun. However during the rare solar eclipses the new moon will be visible as a silhouette.
http://www.eyeonthesky.org/activities_pdf/XXsun_teacher.script.pdf