The sun has a much greater mass than the earth, so it has a stronger gravitational pull. The distance between the sun and the earth is also much greater than the distance between the earth and the moon, so the gravitational pull between the sun and the earth is weaker than the gravitational pull between the earth and the moon.
However, the sun's gravitational pull is still strong enough to keep the earth in orbit around it. The earth's orbit around the sun is not a perfect circle, but an ellipse. This means that the earth is sometimes closer to the sun and sometimes farther away from the sun. When the earth is closer to the sun, the gravitational pull between the sun and the earth is stronger, and the earth's orbit is faster. When the earth is farther away from the sun, the gravitational pull between the sun and the earth is weaker, and the earth's orbit is slower.
The sun's gravitational pull also affects the tides on earth. The tides are the rise and fall of the ocean's surface. The tides are caused by the combined gravitational pull of the sun and the moon. The sun's gravitational pull is stronger than the moon's gravitational pull, but the moon is closer to the earth, so the moon's gravitational pull has a greater effect on the tides.
