RBSE Class 8 Science Notes Chapter 17 Stars and The Solar System

These comprehensive RBSE Class 8 Science Notes Chapter 17 Stars and The Solar System will give a brief overview of all the concepts.

RBSE Class 8 Science Chapter 17 Notes Stars and The Solar System

→ Moon is visible to us due to the fact that sunlight falling over it is reflected towards earth. Stars are the celestial objects which emit light of their own. Sun is also a star. It is the star nearest to the earth.

→ The distance of stars from earth is measured in the unit of light year. All stars appear to move from east to west. Constellation is the name given to a group of stars that has a recognisable shape.

→ Solar system is the group of eight planets and a large number of comets, asteroids and meteors.

→ A body which revolves arounds any other body (due to gravitational attraction) is known as satellite e.g. moon is a satellite of earth.

→ Mercury is the planet nearest to the sun and venus is the planet nearest to the earth. Next to venus is Mars and then Jupiter. Planets next to Jupiter in order are Saturn. Uranus and the last planet is Neptune.

→ Artificial satellites are used for weather forecasting, transmitting television and radio signals. They are also used for remote sensing.