What are similarities between the Earth and the Sun?

Answer 1

Both the Earth and Sun are roughly spherical and rotate on an axis.

Both have satellite bodies and revolve around a larger mass (Earth around the Sun in the solar system, the Sun as part of the Milky Way Galaxy).

Both have mass that imparts gravity.

Although the Earth has a higher percentage of heavier atoms (iron, aluminum, oxygen) compared to the Sun (mostly hydrogen, some helium) both contain at least some of the same chemical elements.

Each is also hotter at its core than its surface.

Answer 2

The sun and the earth both have hotter core, i.e. there surface is much more cooler than that of its core. The sun, the earth and the moon all are situated in the same galaxy. The sun, Moon and The earth are somewhat spherical in shape.

Answer 3

They roughly spherical