Science

Stars and the Solar System

Question:

Explain how you can locate the Pole Star with the help of Ursa Major.

Answer:

In order to locate the Pole star in the sky. first of all Ursa Major or Big Dipper constellation must be located. The bowl of the Big Dipper consists of four bright stars (as shown in the given figure). Consider two stars at the end of this bowl. Now draw an imaginary straight line towards the Northern direction connecting these two stars (as shown in the given figure). This imaginary line meets a star called the Pole Star. The length of the imaginary line from the bowl is about five times the distance between the two stars of the bowl.
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Questions and Answers

Stars and the Solar System

Q 1.

Boojho made the following sketch of the solar system. Is the sketch correct? If not correct it.
Answer

Q 2.

Name the largest planet of the solar system.
Answer

Q 3.

Name two objects other than planets which are members of the solar system.
Answer

Q 4.

Draw sketches to show the relative position of prominent stars in (a) Ursa Major and (b) Orion
Answer

Q 5.

In which part of the sky can you find Venus if it is visible as an evening star?
Answer

Q 6.

What is a constellation? Name any two constellations.
Answer

Q 7.

Do all the stars in the sky move? Explain.
Answer

Q 8.

Explain how you can locate the Pole Star with the help of Ursa Major.
Answer

Q 9.

Why is the distance between stars expressed in light years? What do you understand by the statement that a star is eight light years away from the Earth?
Answer