SOLAR SYSTEM

Detailed explanation-1: -The Milky Way is about 1, 000, 000, 000, 000, 000, 000 km (about 100, 000 light years or about 30 kpc) across. The Sun does not lie near the center of our Galaxy.

Detailed explanation-2: -The Milky Way Galaxy is the one in which we live. It is a spiral-shaped galaxy with hundreds of billions of stars, including our Sun. It is approximately 100, 000 light-years across and 10, 000 light-years thick.

Detailed explanation-3: -The galaxy we live in, called the Milky Way Galaxy, is a barred spiral galaxy composed of at least 100 billion stars. It is approximately 100, 000 light years across and about 1000 light years thick. It has a central bulge that is about 10, 000 light years in diameter.

Detailed explanation-4: -Recent research has doubled the Milky Way’s span to perhaps 200, 000 light-years, showing that while the population of stars grows less dense in our galaxy’s outer rim, a gauzy scattering stretches well past what scientists had previously observed.

Detailed explanation-5: -The galactic year, also known as a cosmic year, is the duration of time required for the Sun to orbit once around the center of the Milky Way Galaxy. One galactic year is 230 million Earth years.