Multiple choice general knowledge science & technology

the mass our galaxy in terms of solar mass is

  1. 6.623 x 10^11

  2. 5.8 x 10^11

  3. 9.8 x 10^11

  4. 1.6 x 10^11

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The mass of the Milky Way galaxy is estimated to be approximately 5.8 x 10^11 solar masses, based on measurements of galactic rotation curves and the distribution of dark matter. This value accounts for all visible matter plus the dark matter halo that constitutes most of the galaxy's mass.