The nearest star to the earth is ___________.
After the sun, the next nearest star to the Earth is:
(a) Alpha Centauri
(b) Pole Star
(c) Sirius
(d) Proxima Centauri
Tarun got to know from his elder brother that sun is the nearest star and is approximately 150 million kilometers away from the earth. He wanted to know which is the next nearest star and what is its distance from the earth. His tutor told him that the nearest star is alpha century and is at a distance of 4.3 light years from the earth. Tarun does not know what a light year is. Can you tell him?
Fill in the blanks.
(a) A group of ________ forming various patterns is called a ________.
(b) A huge system of stars is called _________.
(c) ________ is the closest celestial body to our Earth.
(d) ________ is the third nearest planet to the Sun.
(e) Planets do not have their own _________ and __________.
It takes 5 years for light to reach the earth from A Star. Express the distance of Star from the earth in (a) Light year (b) km.