________ is an application software that allows us to study about constellations in depth.

Earth's trajectory around the Sun is called _________

The dark spots seen in the Sun are known as ______________.

Name a software which can be used to make geometrical constructions.

Interstellar clouds,dust and gases are known as

Which constellation in which the pole star is  part ? 

Changing a file format from its default format to another is called_________.

__________ is a software that can be used for finding the latitude and longitude of a particular place.

The dark spot seen in the Sun is known as ________