Large systems of stars in outer space is called ____________.

Millions of stars together form a group called ____________.

_________ are very huge and are made up of very hot gases.

The Earth is the ___________ planet from the sun.

The distance travelled by light in a year is called.

____________ is closest to the sun.

_____________ is the head of the family and all other celestial bodies revolve around it.

Not a inner planet.
 

Universe is also known as.

Largest planet in the solar system.