A device used to gaze at stars with.

A huge, rotating collection of gases, dust, and billions of stars, and other celestial objects.

A type of satellite that orbits a planet or dwarf planet in a closed path.

Jupiter and Saturn are this type of planets.

A similar term would be the cosmos.

These galaxies are disked shapes with dusty, curvy arms.

The influence of this produces ocean tides.

The four planets closest to the sun are known to be this type of planets.

A person that discovers billions of scattered galaxies throughout the universe with a telescope.

Many galaxies contain this in their center.

A closed path of a celestial object as it travel around another celestial object.

All celestial objects travel around it.

Producing and giving off light; shining.

These types of galaxies originates from disruption of gravitational pull from neighboring galaxies.

The Moon's _________ is four time smaller than Earth's.

A celestial object that orbits the Sun and has a spherical shape but does not dominate its orbit.