MCQ
Q.
'Great Bear' is the name of a:
Correct Answer: C
The correct answer is Constellation.
- Ursa Major constellation lies in the northern sky. Its name means “the great bear,” or “the larger bear” in Latin.
- Ursa Major is the largest northern constellation and third largest constellation in the sky.
- Its brightest stars form the Big Dipper asterism, one of the most recognizable shapes in the sky, also known as the Plough.
- Ursa Major contains seven Messier objects. It also contains 13 stars with confirmed planets.
Important Points
- The biggest known galaxy is IC 1101, which is 50 times the Milky Way's size and about 2,000 times more massive.
- It is about 5.5 million light-years across.
- Our Sun (a star) and all the planets around it are part of a galaxy known as the Milky Way Galaxy.
- A galaxy is a large group of stars, gas, and dust bound together by gravity. The Milky Way is made up of about 90% dark matter, the matter which cannot be seen, and about 10% “luminous matter”, or matter that we can see with our eyes.
- The solar system lies about 30,000 light-years from the galactic centre.
Additional Information
- Sirius, also known as the Dog Star or Sirius A, is the brightest star in Earth's night sky.
- The name means "glowing" in Greek.
