Universe and Solar System - 02

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11. What is the coler of the hottest stars?
Answer :- Blue

12. What is the colour of coldest stars?
Answer :- Red

13. What is the unit of length used to measure large distances to astronomical objects?
Answer :- Parsec

14. One Parsec is equal to about ....... light years?
Answer :- 3.26

15. Which is the nearest known star to the Solar System?
Answer :-Proxima Centauri

16. Who discovered Proxima Centauri in 1915?
Answer :-Robert Innes

17. What is the disctance between the Sun and the Proxima Centauri?
Answer :- 4.25 Light Years

18. What is the brightest star in the night sky?
Answer :- Sirius

19. Which star is also known as 'the Dog Star'?
Answer :- Sirius

20. Which is the largest known star by radius?
Answer :- UY Scuti

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