Multiple choice

Which of the following is related to Sirius?

  1. Galaxy

  2. Star

  3. Satellite

  4. Planet
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sirius is the brightest star in the night sky, located in the constellation Canis Major. It is a binary star system consisting of Sirius A (a main-sequence star) and its companion Sirius B (a white dwarf). Sirius is approximately 8.6 light-years from Earth and has an apparent magnitude of -1.46, making it the brightest star visible from Earth (excluding the Sun).

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