The number of atoms in a planet and the number of atoms in the Sun can vary significantly based on their respective masses and compositions.
A planet, such as Earth, is much smaller and less massive compared to the Sun. Earth has a mass of approximately 5.97 x 10^24 kilograms. Assuming Earth's composition is primarily made up of elements such as oxygen, silicon, iron, magnesium, and others, which are composed of atoms, we can estimate the number of atoms in Earth. However, it's important to note that this estimation will have some degree of uncertainty.
On the other hand, the Sun is a massive ball of gas, primarily composed of hydrogen and helium, which are also made up of atoms.
The Sun's mass is approximately 1.989 x 10^30 kilograms.
Given the vast difference in mass between the Earth and the Sun, the number of atoms in the Sun would be significantly larger than the number of atoms in a planet like Earth. However, calculating the precise number of atoms in each celestial body would require detailed knowledge of their compositions and complex calculations based on atomic masses, elemental abundances, and more.
In summary, the Sun would contain a much larger number of atoms compared to a planet like Earth due to its significantly greater mass.