Q. Next to sun, which is the nearest star of the earth? Answer: Apha centuari
Notes: Sun is nearly 150,000,000 kilometers (150 million km) away from the Earth. The next nearest star to earth is Alpha Centauri which is at a distance of about 4.367 light years from the Earth.
Orion or Usra Major are the names of Constellations.
Sirius is the Brightest star in the sky.