Question

with 1*10 to the power of 22 stars in the sky. List several factors that limit us to being able to see only about 2000 to 3000.

*shape of the galaxy
*size of the galaxy
*The sun's light
*light reflection from earth
*light pollution
*lackness of darkness
*horizon view

Are these right? More factors would be appreciated, thanks

Answer 1

Most of those 10^22 stars are to far away to be seen. Ou eyes only admit light through pupils with a m illimeters diamater. The human retina is also not very sensitive.

Absorption of the light from distant stars (near the center of the galaxy) buy interstellar dust is also important in limiting the number of stars we can see.

The sun's light of course limits our ability to see stars in daytime, but not at night.

I would agree with your answers os light pollution and lack of darkness, which are really the same thing. The other reasons you gave are not important.

Answer 2

thank you so much:-)