Question

How do scientists know where our sun is located in the galaxy?

Answer 1

From Hubble Space Telescope data on the motion of stars tending to fall into the Black Hole center of Milky Way.

Explanation:

Hubble Space Telescope data had helped scientists to study the

motion of stars that fall into galaxy center and the (prenatal)

formation of stars from gas spiraling from Milky Way disk. Astute

computation from such data reveals that the Black Hole center is

about 27000 light years from the Earth, in the Sun system. This is

the so-called 2-sd (significant digits) approximation

27 thousand light years

to the distance, and so, the approximation to the Sun's

distance is the same. Now, scientist have started detecting stars

behind the center. In this parlance, far distant stars mean star

clusters.

Reference:

http://nasa.gov/feature/galaxy/2016/hubble-s-journey-tothe-center-of-our-galaxy..