Q:

What are heavenly bodies in astronomy?

A:

Heavenly bodies in astronomy are natural bodies visible in the sky. These are also known as celestial bodies. These bodies do not include man-made objects, such as satellites. Examples of heavenly or celestial bodies include planets, stars, dwarf planets and quasars.

The term astronomical object is also used to define naturally occurring physical entities that are observable in the universe. These objects are typically single cohesive structures such as asteroids, moons, planets and stars. Astronomical, heavenly or celestial bodies differ from astronomical objects. Astronomical objects are associated with a position in space, but these objects may not be a single cohesive structure, such as a star. They are often a grouping of many objects, such as a star cluster, nebula or galaxy. A comet can be defined as both an object and a body. It can be described as a body when referring to its nucleus alone or as an object when referring to its nucleus and tail.

The observable universe can be seen as having a hierarchical structure. The fundamental component of assembly at large scales is the galaxy. Galaxies are grouped into clusters and superclusters. These structures are spread out over thousands, millions or even billions of light years.


Is this answer helpful?

Similar Questions

  • Q:

    What is a circumpolar star?

    A:

    A circumpolar star is so close to one of Earth's two poles that instead of rising and setting like other stars, it seems only to revolve around one point in the sky. This effect is caused by Earth's rotation on its axis and can be seen at high latitudes.

    Full Answer >
    Filed Under:
  • Q:

    What are the three types of galaxies?

    A:

    Astronomers classify galaxies by their shape into elliptical, spiral and irregular categories. Each group is further subdivided into more specific types, such as dwarf ellipticals or barred spirals.

    Full Answer >
    Filed Under:
  • Q:

    How do stars shine in the night sky?

    A:

    Stars are big balls of gas, and they shine because the gas inside is so hot that it causes nuclear fusion, which is the energy releasing process that people can see from earth. Nuclear fusion is where two individual atoms fuse and form a different atom.

    Full Answer >
    Filed Under:
  • Q:

    What does supernova mean?

    A:

    A supernova is a star that has exploded at the end of its life. Only special stars undergo supernovae; the sun will not experience a supernova when it dies. Supernovae occur in stars that have more than 10 times the mass of the sun.

    Full Answer >
    Filed Under:

Explore