himlakropparnas

Himlakroppar, or celestial bodies, are objects in outer space that are massive enough to be spherical due to their own gravity. These include planets, moons, stars, comets, and asteroids. The study of himlakroppar is a branch of astronomy known as astrophysics. Planets are large celestial bodies that orbit around stars. They can be terrestrial, with a solid surface, or gas giants, which are primarily composed of hydrogen and helium. Moons, also known as natural satellites, are smaller bodies that orbit planets. Stars are massive, luminous spheres of plasma held together by their own gravity. They generate energy through nuclear fusion. Comets are icy bodies that release gas and dust as they approach the sun, forming a coma and sometimes a tail. Asteroids are rocky bodies that orbit the sun, primarily found in the asteroid belt between Mars and Jupiter. The study of himlakroppar provides valuable insights into the formation and evolution of the universe.